Ion-conducting material, core-shell structure containing the same, electrode prepared with the core-shell structure and metal-ion battery employing the electrode
申请人:INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
公开号:US11539046B2
公开(公告)日:2022-12-27
An ion-conducting material, a core-shell structure containing the ion-conducting material, an electrode prepared with the core-shell structure and a metal-ion battery employing the electrode are provided. The core-shell structure includes a core particle and an organic-inorganic composite layer formed on the surface of the core particle for encapsulating the core particle. The core particle includes lithium cobalt oxide, lithium nickel cobalt oxide, lithium nickel cobalt manganese oxide, or lithium nickel cobalt aluminum oxide. Also, the organic-inorganic composite layer includes nitrogen-containing hyperbranched polymer and an ion-conducting material. The ion-conducting material is a lithium-containing linear polymer or a modified Prussian blue, wherein the modified Prussian blue has an ion-conducting group and the lithium-containing linear polymer has an ion-conducting segment.
本发明提供了一种离子导电材料、一种含有该离子导电材料的芯壳结构、一种用该芯壳结构制备的电极以及一种采用该电极的金属离子电池。芯壳结构包括芯颗粒和形成在芯颗粒表面用于封装芯颗粒的有机-无机复合层。核心颗粒包括钴氧化锂、镍钴氧化锂、镍钴锰氧化锂或镍钴铝氧化锂。此外,有机-无机复合层还包括含氮超支化聚合物和离子导电材料。离子导电材料是含锂线性聚合物或改性普鲁士蓝,其中改性普鲁士蓝具有离子导电基团,含锂线性聚合物具有离子导电段。