Homogeneous Repair of Highly Degraded Ni-Rich Cathode Material with Spent Lithium Anode

doi:10.1002/adma.202311553

IMR OpenIR

	Homogeneous Repair of Highly Degraded Ni-Rich Cathode Material with Spent Lithium Anode
	Shi, Ruyu 1; Zheng, Nengzhan 1; Ji, Haocheng 1; Zhang, Mengtian 1; Xiao, Xiao 1; Ma, Jun 1; Chen, Wen 1; Wang, Junxiong 1,2; Cheng, Hui-Ming 3,4; Zhou, Guangmin 1
通讯作者	Wang, Junxiong(wjx1992@sjtu.edu.cn) ; Cheng, Hui-Ming(hm.cheng@siat.ac.cn) ; Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn)
	2023-12-26
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
页码	12
摘要	Direct regeneration of spent lithium-ion batteries has received wide attention owing to its potential for resource reuse and environmental benefits. The repair effect of direct regeneration methods undergoing heterogeneous repair process is usually inferior, while homogenous repair process plays a vital role to achieve satisfactory repair results. However, the practical applications of current homogeneous repair methods are challenged by the complex operations and relatively high costs owing to the requirement of additional heating or pressurization. Herein, this work proposes a simple strategy to achieve homogeneous repair of spent cathode materials under relatively mild conditions by uniformly precoating lithium source at room temperature and atmospheric pressure. Followed by annealing, highly degraded LiNi0.83Co0.12Mn0.05O2 with severe Li deficiency and irreversible phase transition is repaired to have an initial capacity of 181.6 mAh g-1 and capacity retention of 80.7% after 150 cycles at 0.5 C. The lithium source used in this strategy is from the spent lithium anode. Moreover, this strategy is suitable for the direct regeneration of various layer oxide cathode materials with different failure degrees. This work provides both theoretical guidance and practical examples for the straightforward, effective, and universally applicable direct regeneration methods. This work uses spent Li anode as lithium source to uniformly precoat a layer of biphenyl-Li on the surface of spent cathode materials at room temperature and pressure, which achieves the homogeneous repair of highly degraded Ni-rich cathode material (LiNi0.83Co0.12Mn0.05O2) under relatively mild conditions. Meanwhile, this strategy can be extended to other layer cathode materials and the regenerated cathode materials exhibit comparable performance to those of corresponding commercial materials.image
关键词	direct regeneration homogeneous repair Ni-rich cathode material spent lithium anode spent lithium-ion batteries
资助者	National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Guangdong Innovative and Entrepreneurial Research Team Program ; Shenzhen Science and Technology Program ; Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School ; Tsinghua Shenzhen International Graduate School-Shenzhen Pengrui Young Faculty Program of Shenzhen Pengrui Foundation
DOI	10.1002/adma.202311553
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[U21A20174] ; Joint Funds of the National Natural Science Foundation of China[2021ZT09L197] ; Guangdong Innovative and Entrepreneurial Research Team Program[KQTD20210811090112002] ; Shenzhen Science and Technology Program ; Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School[SZPR2023007] ; Tsinghua Shenzhen International Graduate School-Shenzhen Pengrui Young Faculty Program of Shenzhen Pengrui Foundation
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001135269600001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183215
专题	中国科学院金属研究所
通讯作者	Wang, Junxiong; Cheng, Hui-Ming; Zhou, Guangmin
作者单位	1.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 2.Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518055, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shi, Ruyu,Zheng, Nengzhan,Ji, Haocheng,et al. Homogeneous Repair of Highly Degraded Ni-Rich Cathode Material with Spent Lithium Anode[J]. ADVANCED MATERIALS,2023:12.
APA	Shi, Ruyu.,Zheng, Nengzhan.,Ji, Haocheng.,Zhang, Mengtian.,Xiao, Xiao.,...&Zhou, Guangmin.(2023).Homogeneous Repair of Highly Degraded Ni-Rich Cathode Material with Spent Lithium Anode.ADVANCED MATERIALS,12.
MLA	Shi, Ruyu,et al."Homogeneous Repair of Highly Degraded Ni-Rich Cathode Material with Spent Lithium Anode".ADVANCED MATERIALS (2023):12.