An electrochemical-thermal coupled overcharge-to-thermal-runaway model for lithium ion battery
TL;DR: In this article, an electrochemical-thermal coupled overcharge to thermal runaway (TR) model is presented to predict the highly interactive electrochemical and thermal behaviors of lithium ion battery under the overcharge conditions.
About: This article is published in Journal of Power Sources.The article was published on 2017-10-01. It has received 243 citations till now. The article focuses on the topics: Lithium-ion battery & Overcharge.
Citations
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01 Aug 2019
TL;DR: Robust model-based charging optimisation strategies are identified as key to enabling fast charging in all conditions, with a particular focus on techniques capable of achieving high speeds and good temperature homogeneities.
Abstract: In the recent years, lithium-ion batteries have become the battery technology of choice for portable devices, electric vehicles and grid storage. While increasing numbers of car manufacturers are introducing electrified models into their offering, range anxiety and the length of time required to recharge the batteries are still a common concern. The high currents needed to accelerate the charging process have been known to reduce energy efficiency and cause accelerated capacity and power fade. Fast charging is a multiscale problem, therefore insights from atomic to system level are required to understand and improve fast charging performance. The present paper reviews the literature on the physical phenomena that limit battery charging speeds, the degradation mechanisms that commonly result from charging at high currents, and the approaches that have been proposed to address these issues. Special attention is paid to low temperature charging. Alternative fast charging protocols are presented and critically assessed. Safety implications are explored, including the potential influence of fast charging on thermal runaway characteristics. Finally, knowledge gaps are identified and recommendations are made for the direction of future research. The need to develop reliable onboard methods to detect lithium plating and mechanical degradation is highlighted. Robust model-based charging optimisation strategies are identified as key to enabling fast charging in all conditions. Thermal management strategies to both cool batteries during charging and preheat them in cold weather are acknowledged as critical, with a particular focus on techniques capable of achieving high speeds and good temperature homogeneities.
712 citations
01 Aug 2019
TL;DR: A comprehensive review on the key issues of the battery degradation among the whole life cycle is provided in this paper, where the battery internal aging mechanisms are reviewed considering different anode and cathode materials for better understanding the battery fade characteristic.
Abstract: The lithium ion battery is widely used in electric vehicles (EV) The battery degradation is the key scientific problem in battery research The battery aging limits its energy storage and power output capability, as well as the performance of the EV including the cost and life span Therefore, a comprehensive review on the key issues of the battery degradation among the whole life cycle is provided in this paper Firstly, the battery internal aging mechanisms are reviewed considering different anode and cathode materials for better understanding the battery fade characteristic Then, to get better life performance, the influence factors affecting battery life are discussed in detail from the perspectives of design, production and application Finally, considering the difference between the cell and system, the battery system degradation mechanism is discussed
695 citations
TL;DR: In this paper, the authors provide a comprehensive review of the thermal runaway phenomenon and related fire dynamics in singe and multi-cell battery packs, as well as potential fire prevention measures.
667 citations
TL;DR: In this paper, a review summarizes aspects of battery safety and discusses the related issues, strategies, and testing standards, concluding with insights into potential future developments and the prospects for safer lithium-ion batteries.
434 citations
28 Mar 2020
TL;DR: In this paper, the authors comprehensively review the safety features of lithium-ion batteries and the failure mechanisms of cathodes, anodes, separators and electrolyte and propose corresponding solutions for designing safer components.
Abstract: Lithium-ion batteries (LIBs), with relatively high energy density and power density, have been considered as a vital energy source in our daily life, especially in electric vehicles. However, energy density and safety related to thermal runaways are the main concerns for their further applications. In order to deeply understand the development of high energy density and safe LIBs, we comprehensively review the safety features of LIBs and the failure mechanisms of cathodes, anodes, separators and electrolyte. The corresponding solutions for designing safer components are systematically proposed. Additionally, the in situ or operando techniques, such as microscopy and spectrum analysis, the fiber Bragg grating sensor and the gas sensor, are summarized to monitor the internal conditions of LIBs in real time. The main purpose of this review is to provide some general guidelines for the design of safe and high energy density batteries from the views of both material and cell levels. Safety of lithium-ion batteries (LIBs) with high energy density becomes more and more important in the future for EVs development. The safety issues of the LIBs are complicated, related to both materials and the cell level. To ensure the safety of LIBs, in-depth understanding of the safety features, precise design of the battery materials and real-time monitoring/detection of the cells should be systematically considered. Here, we specifically summarize the safety features of the LIBs from the aspects of their voltage and temperature tolerance, the failure mechanism of the LIB materials and corresponding improved methods. We further review the in situ or operando techniques to real-time monitor the internal conditions of LIBs.
390 citations
References
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TL;DR: In this article, a brief introduction to the composition of the battery management system (BMS) and its key issues such as battery cell voltage measurement, battery states estimation, battery uniformity and equalization, battery fault diagnosis and so on, is given.
3,650 citations
TL;DR: In this paper, a review of the lithium ion battery hazards, thermal runaway theory, basic reactions, thermal models, simulations and experimental works is presented, and the related prevention techniques are summarized and discussed on the inherent safety methods and safety device methods.
1,825 citations
TL;DR: In this article, the authors provided a comprehensive review on the thermal runaway mechanism of the commercial lithium ion battery for electric vehicles, and a three-level protection concept was proposed to help reduce thermal runaway hazard.
1,604 citations
TL;DR: A review of the current literature on capacity fade mechanisms can be found in this paper, where the authors describe the information needed and the directions that may be taken to include these mechanisms in advanced lithium-ion battery models.
Abstract: The capacity of a lithium‐ion battery decreases during cycling. This capacity loss or fade occurs due to several different mechanisms which are due to or are associated with unwanted side reactions that occur in these batteries. These reactions occur during overcharge or overdischarge and cause electrolyte decomposition, passive film formation, active material dissolution, and other phenomena. These capacity loss mechanisms are not included in the present lithium‐ion battery mathematical models available in the open literature. Consequently, these models cannot be used to predict cell performance during cycling and under abuse conditions. This article presents a review of the current literature on capacity fade mechanisms and attempts to describe the information needed and the directions that may be taken to include these mechanisms in advanced lithium‐ion battery models.
1,227 citations
TL;DR: In this article, a set of exothermic reactions with corresponding estimates of heats of reaction is selected with corresponding designs for high-rate batteries, along with estimated kinetic parameters and models for the abuse behavior (oven, short-circuit, overcharge, nail, crush).
927 citations