METHOD FOR PLASMA ELECTROCHEMICAL PROCESSING OF GRAPHITE FROM USED LITHIUM-ION BATTERIES
	BELETSKII E V; LEVIN O V
	2023-12-20
专利权人	UNIV SAINT PETERSBURG STATE (UYSP-Non-standard)
申请日期	2023-12-20
专利号	RU2825576-C1
成果简介	NOVELTY - Invention relates to electrical engineering, namely to a method for plasma electrochemical processing of graphite of used lithium-ion batteries (LIB), and can be used in processing and recycling LIB with improvement of electrochemical characteristics of graphite. After processing the LIB and obtaining a precipitate containing graphite, a graphite suspension with a solid weight concentration of 1–10% is prepared with the addition of a salt or acid with concentration of 5 to 80 % by weight, consisting of an alkali, alkali-earth metal cation, and an anion which is not oxidizable in an aqueous solvent (sulphate, nitrate, phosphate, perchlorate, hydrophosphate, dihydrophosphate), or an acid with an anion which is not oxidisable in an aqueous solvent (sulfuric, chloric, hydroiodic, selenic, chloric, phosphoric acids), or hydrogen peroxide, after which the obtained suspension is treated with plasma generated on the positive electrode of the electrolytic cell, at direct current from 0.05 to 0.2 A/cm2 and voltage 0.1–100 kV for 10–60 minutes. USE - Electrical engineering. ADVANTAGE - Improved capacitance characteristics of the processed graphite anode material during processing of lithium-ion accumulators. 1 cl, 5 dwg, 2 ex
IPC 分类号	H01M-010/54 ; H01M-004/583
国家	俄罗斯
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/18843
专题	中国科学院新疆生态与地理研究所
作者单位	UNIV SAINT PETERSBURG STATE (UYSP-Non-standard)
推荐引用方式 GB/T 7714	BELETSKII E V,LEVIN O V. METHOD FOR PLASMA ELECTROCHEMICAL PROCESSING OF GRAPHITE FROM USED LITHIUM-ION BATTERIES. RU2825576-C1[P]. 2023.

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