State estimation and aging mechanism of 2nd life lithium-ion batteries: Non-destructive and postmortem combined analysis
文献类型：期刊论文
| 作者 | Wang, Cun2,6,7; Lin, Da3; Zhao, Bo3; Zhang, Xuesong3; Wang, Yinfei1,6; Wang, Yiwei2,6,7; Cao, Wenjiong2,6,7; Jiang, Fangming2,4,5,6,7 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 443页码:11 |
| 关键词 | Retired lithium-ion battery Cascade utilization Aging mechanism Postmortem analysis Non-destructive analysis |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2023.141996 |
| 通讯作者 | Jiang, Fangming(jiangfm@ms.giec.ac.cn) |
| 英文摘要 | Lithium-ion batteries used in electric vehicles (EVs) are expected to reach end-of-life (EoL) after 10-15 years of operation. Consequently, it is urgent to devise repurposing strategies, which may range from recycling to a 2nd life in stationary energy storage applications. In this paper, aiming the 2nd life repurposing of the batteries, the state estimation and aging mechanisms of retired 32,650-type LiFePO4/graphite batteries were studied. The aging state of batteries was evaluated in terms of their capacity, resistance and self-discharge rate. Test results show that there is no strong correlation between battery capacity decay and resistance increase. To identify and quantify the aging mechanisms of the 2nd life batteries after being cycled at different rates (0.5C, 1C and 2C), non-destructive analyses (incremental capacity/differential voltage curves, modified equivalent circuit model, and electrochemical impedance spectroscopy) are combined with postmortem analysis. The results reveal that the aging of the batteries cycled at 0.5C is primarily due to the loss of active material (LAM), while the loss of lithium inventory (LLI) is rather insignificant. For the batteries cycled at 1C and 2C, in addition to LAM, LLI is also severe, eventually leading to an increase in resistance of the battery, which causes a rapid decline of the battery capacity. The results also indicate the non-destructive methods are reliable to identify ongoing aging mechanisms. |
| WOS关键词 | INCREMENTAL CAPACITY ANALYSIS ; COMPOSITE POSITIVE ELECTRODE ; SELF-DISCHARGE ; CYCLE LIFE ; CELLS ; INTERCALATION ; PERFORMANCE ; DEPENDENCE ; VEHICLES ; FADE |
| 资助项目 | Science and Technology Project of State Grid Zhejiang Electric Power Co., Ltd[B311DS210015] |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000932673100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Science and Technology Project of State Grid Zhejiang Electric Power Co., Ltd |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38557]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Jiang, Fangming |
| 作者单位 | 1.Shenyang Univ Chem Technol, Sch Mech & Power Engn, Shenyang 110142, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Elect Power Res Inst State Grid Zhejiang Elect Pow, Hangzhou 310027, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Adv Energy Syst, Guangzhou, Peoples R China 5.2 Nengyuan Rd, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Adv Energy Syst, Guangzhou 510640, Peoples R China 7.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Cun,Lin, Da,Zhao, Bo,et al. State estimation and aging mechanism of 2nd life lithium-ion batteries: Non-destructive and postmortem combined analysis[J]. ELECTROCHIMICA ACTA,2023,443:11. |
| APA | Wang, Cun.,Lin, Da.,Zhao, Bo.,Zhang, Xuesong.,Wang, Yinfei.,...&Jiang, Fangming.(2023).State estimation and aging mechanism of 2nd life lithium-ion batteries: Non-destructive and postmortem combined analysis.ELECTROCHIMICA ACTA,443,11. |
| MLA | Wang, Cun,et al."State estimation and aging mechanism of 2nd life lithium-ion batteries: Non-destructive and postmortem combined analysis".ELECTROCHIMICA ACTA 443(2023):11. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。