会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Method for preparing positive active material for rechargeable lithium battery and positive active material prepared by same
    • 用于制备可再充电锂电池的正极活性材料和由其制备的正极活性材料的方法
    • US07326498B2
    • 2008-02-05
    • US10996724
    • 2004-11-22
    • Yong-Chul ParkGeun-Bae KimJun-Won SuhWon-Il Jung
    • Yong-Chul ParkGeun-Bae KimJun-Won SuhWon-Il Jung
    • H01M4/58
    • H01M4/525H01M4/131H01M4/366H01M4/62H01M10/0525
    • Disclosed is a method of preparing a positive active material for a rechargeable lithium battery including adding first and second compounds to a solvent to prepare an acidic solution with a pH from 0.01 to 3, the first compound including an element that is capable of forming a double bond with an oxygen of a lithium metal oxide, and the second compound including at least one element selected from the group consisting of alkali metals, alkali earth metals, group 13 elements, group 14 elements, transition metals and rare-earth elements; adding a lithium-containing compound to the acidic coating solution to coat the lithium-containing compound; and heat-treating the coated lithium-containing compound to form a surface-treatment layer comprising a compound represented by the formula MXOk where M is an element selected from the group consisting of alkali metals, alkali earth metals, group 13 elements, group 14 elements, transition metals, rare-earth elements and combinations thereof; X is an element that is capable of forming a double bond with oxygen; and k is an integer from 2 to 4.
    • 公开了一种制备用于可再充电锂电池的正极活性材料的方法,包括将第一和第二化合物加入到溶剂中以制备pH为0.01至3的酸性溶液,所述第一化合物包括能够形成双 与锂金属氧化物的氧结合,所述第二化合物包括选自碱金属,碱土金属,第13族元素,第14族元素,过渡金属和稀土元素中的至少一种元素; 向酸性涂料溶液中加入含锂化合物以涂覆含锂化合物; 并且对所述涂覆的含锂化合物进行热处理以形成表面处理层,所述表面处理层包含由式MXO compound表示的化合物,其中M是选自碱金属,碱土金属 ,第13族元素,第14族元素,过渡金属,稀土元素及其组合; X是能够与氧形成双键的元素; k为2〜4的整数。