文献类型：期刊文献

英文题名：In situ lithium plating monitor for lithium-ion batteries enabled by operando pressure detection

作者：Zhu, Yunpeng[1,2];Yan, Liqin[1];Han, Songyi[4];Gu, Meirong[1];Ma, Sen[1];Luo, Ying[1];Meng, Aiting[1,3];Zhao, Chongjun[2];Xie, Jingying[1];Yang, Cheng[1];Li, Qingbo[1]

机构：[1]Shanghai Inst Space Power Sources, State Key Lab Space Power Sources, Shanghai 200245, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[3]Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Heavy Met Deep Remediat Water & Reso, Qinhuangdao 066004, Hebei, Peoples R China;[4]Shandong Vocat Coll Ind, Coll Mech & Elect Engn, Zibo 256414, Shandong, Peoples R China

年份：2025

卷号：631

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20250417757602);WOS:【SCI-EXPANDED(收录号:WOS:001412526400001)】；

基金：Funding This work was supported by the National Key R & D Program of China [No. 2022YFB3305400] . The National Natural Science Foundation of China (Grant No. U23B20171)

语种：英文

外文关键词：Li-ion batteries; Lithium plating; Operando pressure; dP/dQ

摘要：Lithium plating on graphite anode surface in lithium-ion batteries accelerates the capacity degradation of batteries, reduces their lifespan, and poses potential danger such as short-circuiting. Hence, real-time, nondestructive, in-situ monitoring of lithium plating behavior and dynamic regulating the charging strategy accordingly is crucial for the healthy operation of fast-charging lithium-ion batteries during low temperature and high C-rate charging. Our research establishes that the plateau in the pressure differential curve (dP/dQ) serves as a definitive indicator of lithium plating occurrence lithium plating growth. The dP/dQ plateau exhibits strong reliability, accuracy, sensitivity, applicability, and practicality in identifying lithium plating growth which has a significant damage on battery capacity Furthermore, we demonstrate that during low-temperature and high Crate charging, identifying the lithium plating boundary using the dP/dQ plateau and dynamically regulating the charging cut-off voltage within lithium plating boundary can maximize the operational voltage range, thereby enhancing energy output (increasing energy output by 15.2 % with only a 0.8 % increase in capacity loss over 30 cycles). This methodology promises a practical strategy for extending the operational health and efficiency of fast charging lithium-ion batteries.