废旧锂电池负极碳的回收活化及其电容去离子脱盐研究
Research on Recycling and Activation of Anode Carbon from Waste Li-Ion Batteries for Capacitive Deionization
DOI: 10.12677/HJCET.2022.124036, PDF,    科研立项经费支持
作者: 朱政铭, 韩胜男, 潘 超*：大连海洋大学海洋科技与环境学院，辽宁 大连
关键词: 废旧锂电池；负极碳；活化；电容去离子；Waste Li-Ion Batteries； Anode Carbon； Activation； Capacitive Deionization
摘要: 电容去离子技术(CDI)是一种新型水处理技术，其相较传统水处理技术具有低电压、低能耗、再生简单、低成本和无二次污染的优点。电极材料是决定CDI性能的关键要素，但目前主要是以开发新型电极材料为主，而基于废旧碳粉的回收则研究较少。本文以废旧锂电池负极碳粉为碳源，通过放电、拆解、清洗、活化等工艺得到了碳电极材料。并以其为活性材料组装成CDI模块，测试了脱盐性能。研究了加载电压、溶液浓度和流速对脱盐性能的影响。结果表明，在2.0 V电压、4 mL/min流速、500 mg/L NaCl浓度条件下，电极具有最佳脱盐性能，脱盐量(SAC)为19.9 mg/g。
Abstract: Capacitive deionization technology (CDI) is a new type of water treatment technology, which has the advantages of low voltage, low energy consumption, simple regeneration, low cost and no secondary pollution compared with traditional water treatment technology. Electrode materials are a key factor in determining CDI performance, but at present, the main focus is on the development of new electrode materials, and the recovery of waste carbon electrodes is less studied. Based on this, this paper uses the carbon slag of the anode of the waste lithium battery as the carbon source, and obtains the experimental materials through discharge, disassembly, cleaning and other processes. The electrode material was assembled into a CDI device, and its electrochemical properties and desalination properties were tested. The results show that the conditions of 2.0 V voltage, 4 mL/min flow rate and 500 mg/L NaCl concentration, it has the best desalination performance, and the salt adsorption capacity (SAC) is 19.9 mg/g.
文章引用：朱政铭, 韩胜男, 潘超. 废旧锂电池负极碳的回收活化及其电容去离子脱盐研究[J]. 化学工程与技术, 2022, 12(4): 269-277. https://doi.org/10.12677/HJCET.2022.124036

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