公开(公告)号：US20180331389A1

公开(公告)日：2018-11-15

申请号：US15775696

申请日：2015-11-20

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Haijing LIU ,  Xiaochao QUE ,  Meiyuan WU ,  Dewen KONG ,  Jianyong LIU ,  Zhiqiang YU ,  Shawn DENG

IPC分类号： H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M10/42 ,  H01M10/0569 ,  H01M2/16

CPC分类号： H01M10/0525 ,  H01M2/162 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M10/0569 ,  H01M10/42 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4292

摘要： A lithium ion battery is provided that includes: a positive electrode; a negative electrode; and a polymer separator soaked in an electrolyte solution, the polymer separator being disposed between the positive electrode and the negative electrode. The positive electrode includes an active material of lithium manganese oxide, lithium nickel manganese cobalt oxide, or combinations thereof. The negative electrode includes lithium titanate. A method of making the lithium ion battery is also provided.

公开(公告)号：US20180198115A1

公开(公告)日：2018-07-12

申请号：US15740258

申请日：2015-06-30

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Zhiqiang YU ,  Dewen KONG ,  Haijing LIU

IPC分类号： H01M4/04 ,  H01M10/052 ,  H01M4/36 ,  H01M4/62

CPC分类号： H01M4/0471 ,  H01M4/04 ,  H01M4/366 ,  H01M4/625 ,  H01M10/052

摘要： A method for reducing residual water content in a battery material includes placing the battery material having residual water adsorbed therein in a channel substantially sealed from an ambient environment. A gaseous mixture is caused to flow through the battery material in the channel. The gaseous mixture includes an organic solvent vapor present in an amount effective to hydrogen bond with at least some water molecules from the battery material. The gaseous mixture is caused to flow through the battery material for a predetermined amount of time, at a predetermined temperature, and at a predetermined pressure. The organic solvent vapor having at least some water molecules bonded thereto is removed from the battery material. The removing takes place for a predetermined amount of time, at a predetermined temperature, and at a predetermined pressure, thereby forming the battery material having reduced residual water content.