As a result, when the lithium-ion battery was short-circuited externally, the battery temperature rose rapidly to the maximum temperature that the battery can rise. The highest temperature caused by external short circuit appeared in the case of a single battery. The higher the SOC, the faster the battery temperature rose.
The microscopic and macroscopic changes of lithium-ion batteries after high temperature cycling and their effect on external short circuit (ESC) are studied in this study.
Abusive lithium-ion battery operations can induce micro-short circuits, which can develop into severe short circuits and eventually thermal runaway events, a significant safety concern in lithium-ion battery packs. This paper aims to detect and quantify micro-short circuits before they become a safety issue. We develop offline batch least square-based and real-time gradient
External short circuit (ESC) is a severe fault that can cause the large current and high temperature of lithium-ion batteries (LiBs) immediately. Temperature rise prediction is crucial for LiB safety management in an all-climate electric vehicles application because many disastrous consequences are caused by high temperature. This
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
External short circuit (ESC) of lithium-ion batteries is one of the common and severe electrical failures in electric vehicles. In this study, a novel thermal model is developed to capture the temperature behavior of batteries under ESC conditions.
Temperature rise in Lithium-ion batteries (LIBs) due to solid electrolyte interfaces breakdown, uncontrollable exothermic reactions in electrodes and Joule heating can result in the catastrophic
The results show that the temperature rise rate of the external short circuit of the battery is greater at low initial SOC values and low temperatures. Download conference paper PDF . Similar content being viewed by others. Study of lithium-ion battery module''s external short circuit under different temperatures Article 16 March 2020. Influence of positive temperature
When the battery temperature reaches the failure temperature of the battery separator, the separator collapses, resulting in a large area of ISC between the positive and negative electrodes of the battery, and the terminal voltage of the battery suddenly drops to 0. Simultaneously, higher temperature triggers a chain reaction, releasing a relatively large
After the external short circuit experiments, cyclic charge and discharge experiments of lithium ion batteries at different temperatures were conducted to analyze change of remaining capacity of battery and battery modules. In this experiment, the single battery and the other nine battery module was used to analyze remaining capacity and
External short circuit (ESC) is a severe fault that can cause the large current and high temperature of lithium-ion batteries (LiBs) immediately. Temperature rise prediction is
Model-based fault diagnosis approach on external short circuit of lithium-ion battery used in electric vehicles Appl. Energy, 184 ( Dec. 2016 ), pp. 365 - 374, 10.1016/j.apenergy.2016.10.026 View PDF View article View in Scopus Google Scholar
Temperature rise prediction of lithium-ion battery suffering external short circuit for all-climate electric vehicles application Appl. Energy, 213 ( 2018 ), pp. 375 - 383 View PDF View article View in Scopus Google Scholar
The results show that the tem-perature rise rate of the external short circuit of the battery is greater at low initial SOC values and low temperatures. Lithium-ion battery (LIB) have the advantages of high energy density, high power den-sity, and low self-discharge rate, and have been widely used in the field of electric vehicle power drive [1].
Lithium-ion batteries may occur thermal runaway after internal short circuit caused by mechanical abuse. It is extremely important to study the influencing factors of thermal runaway. In this article, the quasi-static battery extrusion test is used to study the changes of load, voltage, and temperature during the short circuit process of lithium-ion batteries and to
As a result, when the lithium-ion battery was short-circuited externally, the battery temperature rose rapidly to the maximum temperature that the battery can rise. The highest...
Based on this, an external short-circuit test according to the type, short-circuit resistance and SOC (states of charge) of the lithium-ion battery was performed to confirm the
As a result, when the lithium-ion battery was short-circuited externally, the battery temperature rose rapidly to the maximum temperature that the battery can rise. The highest...
As a result, when the lithium-ion battery was short-circuited externally, the battery temperature rose rapidly to the maximum temperature that the battery can rise. The highest temperature
After the external short circuit experiments, cyclic charge and discharge experiments of lithium ion batteries at different temperatures were conducted to analyze
Currently, large-format lithium-ion batteries are the main battery technology used for hybrid and electric vehicles, primarily because of their high energy and power densities [[1], [2]].Their use is expected to rise - it is predicted that hybrid and electric vehicles will account for at least 50% of the total light duty vehicles sales worldwide by 2050 [3].
With the proliferation of Li-ion batteries in smart phones, safety is the main concern and an on-line detection of battery faults is much wanting. Internal short circuit is a very critical issue
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 high temperature rise and may...
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. The proposed method examines three criteria: voltage variation, current variation and temperature change rate. These criteria can be used to identify the fault independent of the battery state of
Based on this, an external short-circuit test according to the type, short-circuit resistance and SOC (states of charge) of the lithium-ion battery was performed to confirm the current and temperature characteristics according to each condition.
As figure shows, the temperature of lithium-ion battery rapidly rose after the short circuit starting, and the temperature reached 110 °C in a short period. Then, due to the triggering of PTC and CID components, the temperature began to enter a stable period. The temperature was maintained at about 110 °C.
As a result, when the lithium-ion battery was short-circuited externally, the battery temperature rose rapidly to the maximum temperature that the battery can rise. The highest temperature caused by external short circuit appeared in the case of a single battery. The higher the SOC, the faster the battery temperature rose.
They found that the risk of thermal runaway during an inter-nal short circuit increases as the battery’s state of charge (SOC) increases. Wu et al. explored the relationship between the electrochemical characteristics and thermal stability of advanced lithium-ion batteries in abuse testing .
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.
Thermal Model: This part of the model utilizes a first-order thermal network to simulate the dynamic temperature response of the lithium-ion battery. Input to this model comes from the current and voltage information provided by the equivalent circuit model.
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.
We are deeply committed to excellence in all our endeavors.
Since we maintain control over our products, our customers can be assured of nothing but the best quality at all times.