公开(公告)号：US20160006075A1

公开(公告)日：2016-01-07

申请号：US14768562

申请日：2014-02-26

Applicant: DAISO CO., LTD.

Inventor： Masato TABUCHI ,  Katsuhito MIURA ,  Hajime MIYASHIRO ,  Yo KOBAYASHI

IPC: H01M10/0565 ,  H01M4/36 ,  H01M4/04 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/485

CPC classification number: H01M10/0565 ,  C08G65/14 ,  C08G65/22 ,  C08G65/2603 ,  C08G65/269 ,  C08K5/13 ,  C08K5/55 ,  C08L71/02 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/0416 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/485 ,  H01M4/622 ,  H01M10/0525 ,  H01M2300/0082

Abstract: Disclosed is a secondary battery having high capacity and excellent charge/discharge cycle characteristics, which is obtained by employing a positive electrode that is obtained by covering the surface of a positive electrode material with a polymer solid electrolyte composition using a polyether copolymer and an electrolyte salt compound that is a combination of lithium bisoxalate borate and another lithium salt compound. With respect to the positive electrode, the polymer solid electrolyte and/or the positive electrode material contains a compound that has a phenol structure wherein both of two ortho positions are substituted by a tert-butyl group.

Abstract translation: 公开了具有高容量和优异的充放电循环特性的二次电池，其通过使用通过使用聚醚共聚物和电解质盐的聚合物固体电解质组合物覆盖正极材料的表面而获得的正极 化合物，其是双草酸锂和另一种锂盐化合物的组合。 对于正极，聚合物固体电解质和/或正极材料含有具有苯酚结构的化合物，其中两个邻位被叔丁基取代。