External short circuit (ESC) faults pose severe safety risks to lithium-ion battery applications. The ESC process presents electric thermal coupling characteristics and becomes more complex when the batteries operate in large group, which often lead to serious consequences.
Currently, a huge study has focused on the single battery’s short circuit. However, cells are often interconnected into a module in real applications. There are many possibilities that external short circuit of a single cell has huge impact on the other cells in a battery module.
The risks of external short-circuit of battery modules with different voltage levels are tested for the first time. Two types of typical risk modes and influencing factors of ESC of battery modules are analyzed and proposed. The effectiveness and limitations of weak links for protection in external short circuits of battery modules are verified.
Mechanism of External Short Circuit in Li-Ion Battery In general, the test item of an external short circuit in a Li-ion battery is to determine the criteria of the level of risk by connecting exposed cathode and anode electrodes to a short resistor.
Chen, Z. Temperature rise prediction of lithium-ion battery suffering external short circuit for all-climate electric vehicles application. Appl. Energy 2018, 213, 375–383. [ Google Scholar] [ CrossRef] Yang, R. Experimental Study on External Short Circuit and Overcharge of Lithium-ion Battery Packs for Electric Vehicles.
The external short-circuit test for the battery cells is also performed depending on two types of battery cells. The test is classified with NMC prismatic and pouch-type batteries in series, and the test device for the external short circuit is configured as shown in Figure 3.
This study is the first to investigate the risk factors and protection design of battery modules with varying voltage levels in the context of external short circuit (ESC) faults. …
The battery external short circuit test, which evaluates the electrical performance and safety of batteries by short circuiting them from outside to simulate use that may cause fire or rupture. …
In this paper, a diagnostic method for identifying an external short circuit (ESC) fault for a lithium-ion battery is developed based upon active characterization experiments and online validation. …
Battery short circuit faults include ESC faults and ISC faults and lots of related researches have been carried out. Early studies mainly focus on the areas of battery short …
that its external case temperature reaches 55 ± 2 °C and then the cell or battery shall be subjected to a short circuit condition with a total external resistance of less than 0.1 ohm at 55 …
External short circuit (ESC) faults pose severe safety risks to lithium-ion battery applications. The ESC process presents electric thermal coupling characteristics and becomes …
Abstract: External short circuit (ESC) and overcharge are two types of electrical failures in lithium-ion batteries for electric vehicles. Experimental study has been conducted to quickly and …
Battery safety, as a key factor restricting the development of electric vehicles (EVs), has attracted much public attention in recent years. External short circuit (ESC) is one of the safety failures …
In addition, experimental results from single cells and small, multiple-cell configurations undergoing external short circuits show that thermal runaway (TR) events are …
For the battery''s external short-circuit characteristics and reaction mechanism experimental study, Kriston et al. [17] conducted external short-circuit tests on two types of ternary cathode …
The safety of power batteries has received more and more attention in promoting electric vehicles. The external short circuit is particularly prominent as an abnormal …
Based on the proposed mechanism of an external short circuit in a Li-ion battery and the test device for the external short circuit, it is confirmed that this paper can contribute to the safety assessment of Li-ion battery-based …
To investigate the characteristics of lithium-ion battery packs under the …
External short circuit has a severe influence on lithium battery''s performance. Currently, a huge study has focused on the single battery''s short circuit. However, cells are …
External short circuit (ESC) is one of the most ubiquitous faults that may occur during the battery utilization in electric vehicles (EVs). ESC causes the
Temperature rise prediction of lithium-ion battery suffering external short circuit for all-climate electric vehicles application
ESC abuse characteristics of fresh LIBs. The temperature–time, voltage–time and current–time curves of a fresh battery subjected to external short circuit are shown in Fig. …
To investigate the characteristics of lithium-ion battery packs under the condition that one cell is short-circuited when the whole battery pack is being discharged or charged, …
Based on the proposed mechanism of an external short circuit in a Li-ion battery and the test device for the external short circuit, it is confirmed that this paper can contribute to …
Among these faults, the ESC fault may be easily triggered under accidental leakage of water or oil into the battery pack, deformed battery packaging due to external force, …
This study is the first to investigate the risk factors and protection design of …