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A process for preparing a positive electrode material for lithium ion battery
A process for preparing a positive electrode material for lithium ion battery
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机译:一种锂离子电池正极材料的制备方法
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摘要
A process for preparing lithium-nickel-manganese-cobalt composite oxide used as a positive electrode material for the lithium ion battery, comprising subjecting a mixture containing a lithium compound and nickel-manganese-cobalt hydroxide to a first-stage sintering and a second-stage sintering. The process includes adding a binder and/or binder solution after the first-stage sintering, and the mixture of the binder and/or binder solution and the product of first-stage sintering is sintered in the second-stage sintering. The tap density and volume specific capacity of the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the process, come up to 2.4 g/cm3 and 416.4 mAh/cm3, respectively. Besides, the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the process possesses the advantages of high specific capacity and good cycle stability.
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机译:一种制备用作锂离子电池正极材料的锂-镍-锰-钴复合氧化物的方法,包括对包含锂化合物和镍-锰-钴氢氧化物的混合物进行第一步烧结和第二步烧结。阶段烧结。该方法包括在第一阶段烧结之后添加粘结剂和/或粘结剂溶液,并且在第二阶段烧结中烧结粘结剂和/或粘结剂溶液与第一阶段烧结的产物的混合物。通过该方法制备的正极材料锂镍锰钴复合氧化物的振实密度和体积比容量分别达到2.4g / cm 3和416.4mAh / cm 3。此外,通过该方法制得的正极材料锂镍锰钴复合氧化物具有比容量高,循环稳定性好的优点。
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