Resource-Efficient Monitoring of Energy Storage Systems During
Transport and Storage: A Data-Driven Approach to Early Short
Circuit Detection
Christoph Schrade
1
, Theo Zschörnig
2
, Leonard Kropkowski
3
and Bogdan Franczyk
1,2
1
Information Systems Institute, Leipzig University, Grimmaische Str. 12, 04109 Leipzig, Germany
2
Institute for Applied Informatics (InfAI), Goerdelerring 9, 04109 Leipzig, Germany
3
Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut HHI, Einsteinufer 37, 10587 Berlin, Germany
Keywords: Internal Short Circuit, Energy Storage System, Battery Electric Vehicle, Battery Energy Storage System, Data
Driven Early Detection.
Abstract: Due to national and international laws and regulations, the number of energy storage systems has risen sharply
in recent years. While battery systems in operation can often be monitored by installed battery management
systems to ensure safe operation, there are still no standardized monitoring methods for batteries during
transport or storage. Consequently, this article proposes a solution for monitoring such batteries in the typical
logistic processes of storage and transport. Particular attention is paid to a resource-efficient implementation
of a data-driven algorithm that is adopted from existing literature and enables the early detection of internal
short circuits, which are the main cause of thermal runaways of battery storage systems. As the transmission
frequency of an external monitoring device is a particularly resource-critical variable, the extent to which
different data frequencies influence the detection performance is also investigated.
1 INTRODUCTION
Energy storage systems (ESS) play a crucial role in
energy transition initiatives worldwide. The main
goal of this transition is to reduce energy
consumption as well as greenhouse gas emissions but
also to increase the utilization of renewable energy
sources. In this regard, ESS enable the storage of
renewable energy, which is often generated
irregularly, therefore making electricity supply more
sustainable and flexible. Two main application areas
of ESS are in battery electric vehicles (BEVs) as well
as battery energy storage systems (BESS) for
residential and commercial applications. Their
importance in the energy transition is clearly reflected
in increasing sales figures over the last years.
However, the use of ESS is always associated with
logistical tasks such as transportation to the
application or production site, the return at the end of
life (EoL) for reuse or recycling as well as their
storage at different stages of their lifecycle. During
these periods, continuous monitoring of ESS is
necessary due to the sensitivity of the integrated
batteries, the resulting safety risks and for ongoing
quality assurance. In this context, internal short
circuits (ISCs) of battery cells in particular are a
major source of danger. Research to date already
offers promising artificial intelligence (AI)-based
approaches that can recognize these short circuits.
However, these require the constant availability of the
battery management system (BMS), which is not
reliably possible when transporting or storing ESS. In
addition, the effect of reducing the monitoring
frequency on the performance of these approaches
has not been investigated. Against this background,
we propose an approach, which can overcome this
challenge thus enabling remote early battery short
circuit detection for ESS in logistics scenarios.
The remainder of this paper is structured as
follows: Section 2 outlines the research motivation,
background, and challenges. Section 3 reviews
related work. Section 4 describes the proposed
solution. Section 5 presents experiments on inference
frequencies for early short circuit detection, with
results discussed in Section 6. Finally, Section 7
summarizes findings and suggests future research
directions.
Schrade, C., Zschörnig, T., Kropkowski, L. and Franczyk, B.
Resource-Efficient Monitoring of Energy Storage Systems During Transport and Storage: A Data-Driven Approach to Early Short Circuit Detection.
DOI: 10.5220/0013291900003929
In Proceedings of the 27th International Conference on Enterprise Information Systems (ICEIS 2025) - Volume 1, pages 781-788
ISBN: 978-989-758-749-8; ISSN: 2184-4992
Copyright © 2025 by Paper published under CC license (CC BY-NC-ND 4.0)
781
2 BACKGROUND
ESS in BEVs as well as BESS in residential and
commercial buildings are almost exclusively utilizing
a lithium-based battery chemistry (IEA, 2022; Marsh,
2023). Under certain conditions, such as
overcharging, overheating or mechanical damage,
lithium-ion based batteries can catch fire or explode.
This is due to the uncontrolled release of their energy
in a short amount of time. This phenomenon is called
thermal runaway and describes an uncontrolled and
exponential increase in the temperature inside the
battery, which may result in serious accidents.
Following Shahid and Agelin-Chaab (2022), the three
major reasons for thermal runaway to start are
mechanical (R1), electrical (R2) and temperature
abuse (R3), all of which typically lead to an ISC.
However, the speed at which an ISC can occur varies
depending on the type of abuse and its severity (P.
Sun et al., 2020). For this reason, early detection of
an ISC is a particularly important aspect of battery
safety and a vivid research topic.
Past research has already yielded a number of
promising AI-based approaches that can detect ISCs
at an early stage. However, these approaches expect
the constant availability of the BMS. However, steady
access to the BMS cannot be guaranteed away from
their place of operation. This significantly increases
the difficulty for safely handling ESS in logistics
scenarios since the potential risk status of individual
batteries cannot be reasonably monitored during pre-
and after-sales processes by stakeholders such as
logistics service providers or freight forwarders.
One possible approach to solve this problem is the
use of an external device that can access the data from
the BMS, while the underlying ESS is not in
operation. Past research has already looked into the
design and application of such a device, but focused
solely on its utilization during the first life of an ESS
at its place of operation. This work aims to bridge this
gap, which has been acknowledged by current
research projects (Plotnikov et al., 2023), and provide
an approach that enables monitoring ESS in BEVs as
well as BESS in residential and commercial buildings
aside from their place of operation, especially during
transportation and storage.
A key challenge when using an external device to
record the BMS and environmental data of an ESS is
its power supply. Especially in logistics scenarios,
there are no fixed power sources. Moreover,
additional framework conditions have to be observed
when designing the external device and must be
considered when solving the overall problem:
High energy usage for data transmission
(FC1) (Jayakumar et al., 2014)
High energy usage for complex
computations (FC2) (Tekin et al., 2023).
Continuous operational readiness (FC3)
(Callebaut et al., 2021)
Compact design and limited battery
capacity (FC4) (Callebaut et al., 2021;
Jayakumar et al., 2014)
Longevity and low maintenance (FC5)
(Callebaut et al., 2021; Jayakumar et al.,
2014).
In view of these conditions, it is necessary to
develop an approach that balances the need for close
monitoring with the limitations of the necessary
battery operation.
Against this background, this work presents an
approach that enables the collection of BMS data,
namely voltage readings of all battery cells, and
environmental data for ISC early detection using an
external device to supplement an ESS during
logistical processes such as transport and storage.
Moreover, the main research question of this paper is:
Is early ISC detection possible using a low
monitoring data frequency? In order to answer this, a
promising approach for early ISC detection from the
literature (Schmid & Endisch, 2022; Schmid et al.,
2022; Schmid, Kneidinger, & Endisch, 2021;
Schmid, Liebhart, et al., 2021) is adopted and the
results from respective research articles concerning
the detection time for ISCs are validated in several
experiments. In addition, the approach is compared to
similar ones. Finally, the effect of the monitoring data
frequency on the detection performance of the chosen
approach is investigated.
3 STATE OF THE ART
Battery fault detection methods can be divided into
three different classes: threshold based, model-based
and data-driven methods (Schmid, Kneidinger, &
Endisch, 2021; Shang et al., 2024). There are also
different types of features that are used; some of them
directly measurable, e.g. voltage and current, others
not, e.g. state of charge (SoC) and capacity or state of
health (SoH).
Threshold based methods follow the approach of
defining a critical threshold for directly measurable
features, which, when exceeded or undercut, indicate
a fault. Model-based approaches attempt to estimate
features that cannot be measured directly and then use
them for error detection. The idea behind data-driven
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782
methods is to use techniques from mathematical
statistics to derive regularities and patterns from
battery data recorded during operation.
In the early stages of an ISC with relatively high
short circuit resistance the effect on the
aforementioned battery features is rather small ("soft"
ISC) which makes it very difficult to detect the fault
at this early stage by directly introducing critical
threshold values (Lai et al., 2020; Schmid & Endisch,
2022). Thus, threshold-based approaches are hardly
the correct tool for early ISC detection.
The review Shang et al. (2024) gives a thorough
treatment of the most recent research literature
concerning model-based and data-driven approaches.
As noted in Schmid et al. (2022), model-based
approaches mostly suffer from the drawback that the
reliability of feature estimations cannot really be
secured. Therefore, the present work focuses on data
driven methods.
In the literature many different data driven and
machine learning approaches are described: Isolation
Forest (Jiang et al., 2022), Support Vector Machines
(Yao et al., 2021) various neural network
architectures, for example LSTM and Radial Basis
Function neural networks (Ojo et al., 2021; Wang et
al., 2021) and Local Outlier Factors (Z. Sun et al.,
2022) can all be found as employed detection
methods.
A major challenge in the early detection of ISC is
the robustness against noise in the sensor data
(Schmid & Endisch, 2022; Schmid, Kneidinger, &
Endisch, 2021; Shang et al., 2024). This makes
Principal Component Analysis (PCA) a good
detection approach.
One disadvantage of PCA is that the projection
used for dimension reduction is purely linear, which
means that non-linear structures in the data may be
lost in the process. This makes PCA an unsuitable
tool for non-linear variations data such as cell level
voltage data of a battery in low SoC range (Schmid &
Endisch, 2022; Schmid et al., 2022; Schmid,
Liebhart, et al., 2021).
In Schmid and Endisch (2022), Schmid, Liebhart,
et al. (2021) and Schmid et al. (2022) the non-
linearity problem is tackled by using a non-linear
extension of PCA, the kernel PCA (KPCA) originally
introduced in Schölkopf et al. (1997). Solving both
the non-linearity and the sensor noise issue makes the
KPCA model from Schmid and Endisch (2022),
Schmid, Liebhart, et al. (2021) and Schmid et al.
(2022) a very promising approach for early ISC
detection in our use case scenario.
None of the aforementioned methods have been
applied for lower data frequencies. Moreover, the
review we conducted suggests that there is no
research that addresses the issue of whether data
frequency during the monitoring phase has any
impact on ISC detection performance.
The scientific approaches to tracking systems
developed to detect ISCs were also investigated. In
this regard the authors of González et al. (2022)
conducted a comprehensive literature review which
did not find any previous works concerning tracking
systems using IoT technology. In Haldar et al. (2024)
a real time tracking system for the SoC and SoH of
three-wheeled battery-operated vehicles is
introduced. The external device used for data
collection uses the batteries to be monitored as its
power source. The collected data is sent to a cloud-
based backend for processing. In Gupta et al. (2020)
a similar approach is presented for monitoring
batteries in BEVs with an external device that uses a
battery power supply and transmits data regarding the
SoC and SoH to a cloud backend.
However, all the reviewed approaches are
developed for operation during the first-life use of the
monitored batteries and at their place of operation.
More importantly, early detection of short circuits is
not carried out in any of the reviewed works.
4 SOLUTION PROPOSAL
In the following, we present our approach to monitor
ESS in logistics scenarios such as transport and
storage. The approach aims to address the challenges
and framework conditions described in section 2. The
central assumption when designing a solution for the
given context is that BMS and environmental data can
only be collected by an external device that has its
own power supply in the form of a battery. The main
goal of the approach is to enable continuous ISC early
detection in ESS, especially in logistics scenarios. In
this context, the FCs mentioned in section 2 lead to
several requirements (REs):
RE1 (derived from FC1, 4 and 5): The
approach should be able to early-detect ISCs
using only low frequency BMS data.
RE2 (FC2): Computations should be
offloaded from the external device as much
as possible.
RE3 (FC3): The approach should allow
continuous monitoring.
Looking at the root causes for thermal runaway, it
is assumed that any form of abuse of a battery leads
to an increased risk of an ISC. The approach should
Resource-Efficient Monitoring of Energy Storage Systems During Transport and Storage: A Data-Driven Approach to Early Short Circuit
Detection
783
reflect this, hence additional requirements can be
derived:
RE4: The approach should be able to detect
mechanical (R1), electrical (R2) and thermal
(R3) abuse.
RE5: The approach should be able to change
data collection frequency according to
predefined conditions.
Looking at the requirements, RE 1 is most
important for the feasibility of the proposed approach.
Since the transmission of BMS data from the external
device to a receiver has a high energy demand, the
frequency at which the device sends its data to a
receiver is a critical variable. This must be set as low
as possible without impairing the monitoring of the
ESS. This requirement also corresponds with the
main research question of the present article, if early
ISC detection is possible with low monitoring data
frequency. In this context, the literature review
suggests using a data driven AI detection approach.
Against this background, a series of experiments are
conducted in Section 5 to examine which approaches
are suitable and what effects different data
frequencies have on the performance of the selected
approaches.
RE 2 is addressed in the presented approach by
introducing 2 different layers for data processing:
The edge layer that comprises the external
device and enables the collection of BMS
and environmental data.
The cloud layer, which receives and
processes the collected data from the edge
layer.
In this context, we propose a variable data
collection frequency in the edge layer, addressing RE3
and RE5. Under normal conditions, a baseline
frequency minimizes power consumption from
processor load and data transmission. However,
external factors like movement, vibration, or
temperature changes trigger an adaptive increase in
detection frequency. This requires sensors to monitor
environmental variables such as speed, rotational
movement, and temperature. Rule-based logic enables
the detection of potential abuse, addressing RE4.
The cloud layer is horizontally scalable for data
ingestion, processing, and distribution, leveraging
established IoT and big data technologies.
Communication between the edge and cloud layer
uses mobile standards (GSM, LTE, 5G) and
lightweight protocols (e.g., MQTT, CoAP, AMQP).
1
https://kafka.apache.org/
2
https://hadoop.apache.org/
Data processing involves two components: model
training and inference. To monitor batteries
throughout their lifecycle, training data must capture
normal behavior across the cycle. As lab data for new
battery types may be limited, models require
continuous retraining to improve predictions.
Inference occurs in real time to identify critical
batteries promptly and notify stakeholders. Therefore,
the approach employs a lambda architecture, with
periodic training in the batch layer and real-time
inference in the streaming layer. Example
technologies to implement this are Apache Kafka
1
,
Hadoop
2
, Apache Spark
3
or Apache Storm
4
.
5 EXPERIMENTS
In order to evaluate the feasibility of our approach, a
series of experiments were conducted to examine the
performance of early detection approaches with
reduced data frequencies. In this context, a real
battery with 6 cells connected in series was artificially
short-circuited in a laboratory environment. This was
carried out with three different resistors as the short
circuit resistor (10Ω, 1kΩ, 10kΩ). Moreover, several
different data frequencies were implemented for the
inference phase, i.e., the phase after the induction of
the short circuit (c. f. section 5.2). Each experiment
was started with an initial phase in which the properly
functioning cells were cycled over a period of time to
generate data for training the model. After this, an
external short circuit (ESC) was induced for one of
the cells by implementing a load resistor and the time
required by the detection algorithm to detect the short
circuit was measured. In this regard, an ESC was
triggered instead of an ISC for reasons of
practicability. Although the behavior of an ESC is not
identical to that of an ISC, Zhang et al. (2017)
nevertheless states that an ESC can mimic the early
phase of an ISC.
In Schmid and Endisch (2022), Schmid et al.
(2022), Schmid, Kneidinger, and Endisch (2021) and
Schmid, Liebhart, et al. (2021) the principal idea for
ISC detection is to look at relations between the single
cell voltages of a system. As discussed in section 3,
the mathematical method that forms the basis of
Schmid and Endisch (2022), Schmid et al. (2022),
Schmid, Kneidinger, and Endisch (2021) and Schmid,
Liebhart, et al. (2021) is principal component
analysis (PCA), which is optimized and exploited in
many different ways to perfectly suit the problem. In
3
https://spark.apache.org/
4
https://storm.apache.org/
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784
particular in Schmid and Endisch (2022), Schmid,
Liebhart, et al. (2021) and Schmid et al. (2022) the
authors utilize the non-linear extension kernel
principal component analysis (KPCA) which makes
it possible to address non-linear relationships in the
data. The line of attack for fault detection is to check
how close a given cell’s voltages vector lies, after a
transformation, to the principal component space that
was computed using training data. More precisely the
so called T
2
- and Q-test statistics values of the vector
of cell voltages are computed while monitoring. The
general principle is that low T
2
- and Q-values
correspond to data which is similar to the training data
while high values display anomalous behavior.
We compared the detection performance of the
KPCA (A
1
) approach with respect to short circuit
detection time with all other approaches found in the
scientific literature, which also only require the
voltage values of individual battery cells for the
detection. More precisely, plain PCA (Schmid,
Kneidinger, & Endisch, 2021) (A
2
) and a very simple
method that just tracks the voltage difference between
the cells (Lai et al., 2020) (A
3
) were evaluated as well.
5.1 Experimental Setup
The batteries utilized in this study are Samsung
INR18650-32E cells, each with a nominal capacity of
3.2Ah. These cells feature a lithium-nickel- cobalt-
aluminum oxide cathode paired with a graphite
anode. The cells have been arranged in a series
configuration using 3D-printed cell holders.
Individual monitoring of the cell voltage has been
implemented using a Gantner Q.bloxx XL A107
5
.
The cycling of the cells is managed using an EA-PSB
10080-120 power supply in conjunction with custom
software tailored to administer the dynamic cycling
protocol. To minimize the impact of external
temperature fluctuations on short circuit detection,
the entire experimental setup was housed within a
thermal chamber maintained at 35°C.
5.2 Training
The detection algorithm was tested on ESC experiment
datasets using 10Ω (R1), 1kΩ (R2), and 10kΩ (R3)
resistors to induce short circuits. The 10kΩ resistor
caused such a slow short circuit that the experiment
was halted after several hours without detections,
leading to the 10kΩ setting being discarded.
While the authors in Schmid and Endisch (2022)
and Schmid et al. (2022) evaluated their approach
5
https://www.gantner-instruments.com/de/produkte/bloxx/
with a fixed inference data frequency of 10Hz
(Schmid & Endisch, 2022) resp. 0.1Hz (Schmid et al.,
2022), in this work the detection time for all resistor
values was evaluated for different inference data
frequencies of 1Hz (F
1
),

Hz (F
2
),

Hz (F
3
),

Hz
(F
4
) and

Hz (F
5
).
Since all approaches (A
1
-A
3
) were evaluated
using the data sets from two different resistor settings
(R
1
and R
2
) while applying five different monitoring
frequencies (F
1
-F
5
) 30 different experimental settings
were studied.
To ensure the training dataset adequately
represented the entire initial cycling phase without
being overly large, 1000 evenly distributed points
were selected. The data was first downsampled from
10Hz to 1Hz by averaging. Data points used for
inference were excluded from the training set. For R
1
and R
2
, the starting inference data point (T
0
) was
chosen about 30 minutes before inducing the short
circuit.
The critical threshold for T²- and Q-values in the
KPCA approach was set at the 0.999-quantile of
training data values. To address fluctuations in testing
data, especially at higher monitoring frequencies, the
detection logic required unusually high T²- and Q-
values to persist for 10 minutes. For the highest
frequencies (1 Hz and

Hz), the approach was
further refined by requiring at least 20% of values in
the last 10 minutes to be critical to detect a short
circuit. For lower frequencies, this adjustment was
unnecessary, as only one data point is transmitted
every 5, 10, or 15 minutes.
5.3 Results
With the aforementioned detection logic
implemented, the following detection times shown in
Table 1 were achieved using the KPCA approach.
Table 1: Detection times of the KPCA approach using
experimental settings A
1
R
1,2
F
1-5
.
1Hz
𝟏
𝟔𝟎
Hz
𝟏
𝟑𝟎𝟎
Hz
𝟏
𝟔𝟎𝟎
Hz
𝟏
𝟗𝟎𝟎
Hz
10Ω 2min
7sec
1min 6min 1min 1min
1kΩ 151
min
97
min
133
min
103
min
253
min
Resource-Efficient Monitoring of Energy Storage Systems During Transport and Storage: A Data-Driven Approach to Early Short Circuit
Detection
785
The experiments were carried out again with the
same detection logic for short circuit detection, but
this time with PCA as the basis of the algorithm. In
this context, identical detection times were observed
for the 10Ω resistor (c. f. Table 2). However, the PCA
approach did not work for the 1kΩ resistor. A short
circuit could not be detected using any of the
monitoring frequencies.
Table 2: Detection times of the PCA approach using
experimental settings A
2
R
1
F
1-5
.
1Hz
𝟏
𝟔𝟎
Hz
𝟏
𝟑𝟎𝟎
Hz
𝟏
𝟔𝟎𝟎
Hz
𝟏
𝟗𝟎𝟎
Hz
10Ω 2min
7sec
1min 6min 1min 1min
Finally, another approach was utilized in which a
short circuit was considered to have been detected if
the maximum difference between the individual cell
voltages was greater than 0.5 volts (Lai et al., 2020).
In this regard, the detection times for the 10Ω
experiment were around 20 minutes for all
frequencies. The approach did not detect anything for
higher short circuit resistances.
6 DISCUSSION
Looking at the results of the conducted experiments,
we conclude that the employed data driven methods
can be utilized to enable early ISC detection with low
monitoring frequencies. Specifically, the KPCA
approach (A
1
) yielded promising detection times
compared to the other two approaches. Additionally,
the results of detection times for the experimental
settings A
1
R
1,2
F
1-5
are of the same order of magnitude
as those in Schmid and Endisch (2022) and Schmid et
al. (2022), which supports the validity of our results
regarding the detection times. The unsuitability of the
PCA approach (A
2
) for high short circuit resistances
(R
2
) has already been discussed in Schmid et al.
(2022). The voltage-difference approach (A
3
) does
not yield successful results for (R
2
) either.
The results also show that there is no clear linear
trend in the relationship between monitoring
frequency and detection time in any of the
experimental settings. This suggests that the detection
times strongly depend on the distribution of selected
data points, meaning they could vary with different
data selections. In order to reinforce this assumption,
the experimental settings A
1
R
1,2
F
1-5
were used again
for detection with an initial time offset of T
0
+7
minutes. The results show that detection times for
lower frequencies (<=

Hz) increase up to 13 times,
which further highlights that detection latency for low
frequencies is highly influenced by the reception time
of the data points.
Table 3: Detection times of the KPCA approach using
experimental settings A
1
R
1
,2F
1-5
with T
0
+7.
1Hz
𝟏
𝟔𝟎
Hz
𝟏
𝟑𝟎𝟎
Hz
𝟏
𝟔𝟎𝟎
Hz
𝟏
𝟗𝟎𝟎
Hz
10Ω 2min
7sec
1min 8min 8min 13
min
1kΩ 151
min
97
min
199
min
79
min
144
min
Concerning the results of experimental settings
A
1-2
R
1,2
F
1-5
,
we recognize that higher monitoring
frequencies were not always faster in detecting ISCs
compared to lower frequencies. This is in contrast to
the naive expectation that a higher frequency enables
faster detection. However, the detection logic seems
to be a factor here - at higher frequencies, statistical
value (T²- and Q-values) fluctuations are more
pronounced, whereas these fluctuations are less
pronounced at lower frequencies. Therefore, the
choice of a suitable detection logic is strongly
frequency-dependent. In this study, a similar
detection logic was used across all frequencies F
1-5
to
enhance the comparability of the results. For practical
applications, however, this means that different,
frequency-optimized detection logics should be
implemented.
In conclusion, our experiments show that using a
data-driven approach such as KPCA is important to
enable our solution proposal for low-frequency
monitoring, energy-efficient, scalable battery
monitoring. However, the precise settings of
monitoring frequencies for different conditions must
be determined for each battery type individually as
the time from damage or abuse to thermal runaway
depends on various factors, e.g. capacity (Zhao et al.,
2016) or environmental influences (Ji et al., 2021).
Therefore, the generalization from the conducted
experiments to other battery configurations or real-
world scenarios is not given and needs to be
investigated in future research. Finally, the ISC early
detection model must be trained anew for each
different battery type.
ICEIS 2025 - 27th International Conference on Enterprise Information Systems
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7 CONCLUSION & OUTLOOK
This paper proposes a method for remote early
detection of battery short circuits in ESS for logistics.
It outlines the research background, motivation, and
related work. While current ISC detection using BMS
data works in controlled settings, it lacks support
during transport and storage. Key requirements
include low-frequency data collection to save battery
life, cloud-based computation, and adaptive
monitoring based on factors like temperature or
movement.
The proposed solution involves a battery-powered
external device for remote monitoring, collecting
battery and environmental data, and a two-layer
architecture: an edge layer for IoT-based data
collection and a cloud layer for scalable analysis and
real-time ISC alerts. The approach presented extends
the state of the art by demonstrating a way of
recognizing ISCs of ESS at an early stage in situations
that were not previously considered in scientific
literature.
In order to evaluate the approach, experiments
with a 6-cell battery setup and artificially induced
short circuits (10Ω, 1kΩ, 10kΩ resistors) to simulate
early ISC phases were carried out. Voltage data was
analyzed using KPCA for anomaly detection, which
proved effective across different frequencies and
outperformed both standard PCA and simpler voltage
tracking methods.
Future research needs to investigate how
analyzing data across the entire lifecycle of a battery
could refine detection logic and improve accuracy.
Moreover, the experiments should be carried out in
more realistic environments and with different battery
types so that the transferability of the approach can be
evaluated. Finally, the computational costs of
different detection approaches should be compared
with each other.
ACKNOWLEDGEMENTS
The work presented in this paper is partly funded by
the German Federal Ministry for Economic Affairs
and Climate Action (BMWK 16TNW0016D) as well
as by the German Federal Ministry of Education and
Research (BMBF 02J21E022).
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