国家/地区 中国（2）
IPC部
IPC大类
IPC小类
IPC
发明人 LIN X（2）
公开年 2023（2）
申请年 2023（2）
专利权人

Graphene heating knee pad for protecting knee of people, has connecting sleeve whose inner part is provided with graphene electric heating block, where inner part of connecting sleeve and lower side of block are provided with cotton layer.

LIN X, ZHUANG R, LIN Y

Secondary battery used in electronic device, comprises cathode pole piece and isolation film, where pole cathode comprises three-dimensional framework comprising first layer framework and second layer framework.

XIE Y, LIN X