文章信息/Info

Title:

Research on Failure Mechanism of Spent Lithium-Ion Batteries

文章編號(hào):

1674-3962(2024)06-0457-10

作者:

鄧聰; 林艷

1. 昆明理工大學(xué)冶金與能源工程學(xué)院，云南 昆明 650093 2. 昆明理工大學(xué) 省部共建復(fù)雜有色金屬資源清潔利用國(guó)家重點(diǎn)實(shí)驗(yàn)室，云南 昆明 650093

Author(s):

DENG Cong; LIN Yan

1. Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China 2. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China

關(guān)鍵詞:

退役鋰離子電池; 失效機(jī)制; 安全失效; 性能失效; 回收策略

Keywords:

spent lithium-ion battery;  failure mechanism;  safety failure;  performance failure;  recycling strategy

分類號(hào):

O646.21;X705

DOI:

10.7502/j.issn.1674-3962.202305017

文獻(xiàn)標(biāo)志碼:

A

摘要:

揭示鋰離子電池失效機(jī)制，有助于分析對(duì)應(yīng)的退役鋰電材料特性，從而為“因材施策”優(yōu)選最經(jīng)濟(jì)有效的退役鋰離子電池回收路徑提供理論支撐，是構(gòu)建多策略梯級(jí)回收技術(shù)體系的重要依據(jù)。歸納總結(jié)現(xiàn)行研究發(fā)現(xiàn)的鋰離子電池失效機(jī)制，分類探討安全失效和性能失效的主要因素，結(jié)合鋰電材料失效機(jī)制分析失效鋰電材料的結(jié)構(gòu)及成分變化，并基于材料失效特性討論相應(yīng)的退役鋰電材料回收方法。最后，針對(duì)構(gòu)建“失效機(jī)制�不厥詹呗浴被ヰ伒耐艘垆囯x子電池多策略協(xié)同回收技術(shù)體系提出工作設(shè)想。

Abstract:

Revealing the failure mechanisms of lithium-ion batteries is crucial for analyzing the characteristics of spent lithium-ion battery materials，which could provide theoretical support for selecting the most cost-effective and efficient recycling path based on material-specific strategies, forming an important foundation for constructing a multi-strategy cascade recycling technology system. This paper reviews the current research findings on the failure mechanisms of lithium-ion batteries, categorizes and explores the key factors contributing to safety and performance failures, investigates the structural and compositional changes of spent lithium-ion materials in relation to their failure mechanisms, and analyzes corresponding recycling strategies based on spent lithium-ion battery materials-failure characteristics. Based on the failure characteristics of materials, discusses the corresponding recycling methods for spent lithium-ion batteries. Finally, proposes a working hypothesis for the construction of a multi-strategy collaborative recycling technology system for spent lithium-ion batteries that feeds back between failure mechanisms and recycling strategies.