DataVXACS Energy LettersPaper
journal article·2022-08-12

Efficient Extraction of Lithium from Anode for Direct Regeneration of Cathode Materials of Spent Li-Ion Batteries

Junxiong Wang, Jun Ma, Kai Jia, Zheng Liang, Guanjun Ji, Yun Zhao, Baohua Li, Guangmin Zhou, Hui-Ming Cheng

ACS Energy Letters· Volume 7· Issue 8
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Source abstract

Abstract

The recycling of lithium-ion batteries is important due to limited metallic resources and environmental protection. However, most current studies aim at only extracting valuable components from cathode materials, and the lithium in the anode is usually ignored due to its low concentration. Herein, we develop an integrated recycling strategy for both cathode and anode materials. Batteries are disassembled, and lithium in lithiated graphite is extracted in water and converted to Li2CO3 after absorbing CO2 from the air, which is then used for the direct regeneration of LiCoO2 and LiNi0.5Mn0.3Co0.2O2, while the degraded graphite is regenerated by the delithiation and activation. LiCoO2 with different degrees of failure can retrieve a capacity of 130 mAh/g, while degraded graphite can realize a capacity of 370 mAh/g after regeneration, values which are comparable to commercial materials. Importantly, no external lithium salt is necessary, and water is the only reagent used during regeneration of the cathode material.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Extraction and Separation Processes · Advancements in Battery Materials · Recycling and Waste Management Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China

Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Qinhe Energy Conservation and Environmental Protection Group Co., Ltd. · Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School

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