公开(公告)号：US09979048B2

公开(公告)日：2018-05-22

申请号：US14550642

申请日：2014-11-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Myungjin Lee ,  Jehwon Choi ,  Soyeon Kim ,  Dahye Park ,  Joungwon Park ,  Yonggun Lee

IPC: H01M10/056 ,  H01M10/0565 ,  H01M10/052 ,  C08F30/02 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M10/0565 ,  C08F30/02 ,  H01M4/62 ,  H01M10/052 ,  H01M2004/027 ,  H01M2300/0022 ,  H01M2300/0082 ,  Y02T10/7011

Abstract: A polymer electrolyte for a lithium battery, wherein the polymer electrolyte includes a polymerization product of a lithium ion conductive compound including an ethylenically unsaturated bond, a lithium ion conductive unit, and an ion-exchangeable functional group; and a heteroatom-containing ionic liquid polymerizable with the lithium ion conductive compound.

公开(公告)号：US20150243978A1

公开(公告)日：2015-08-27

申请号：US14621544

申请日：2015-02-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongkuk Shon ,  Minsang Song ,  Jaejun Chang ,  Sangmin Ji ,  Jaeman Choi ,  Jehwon Choi ,  Dongjin Ham

IPC: H01M4/485 ,  H01M4/525 ,  C01G53/04 ,  H01M10/052 ,  C01D15/02 ,  H01M4/505 ,  H01M4/36

CPC classification number: H01M4/485 ,  C01G53/50 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/1315 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: A positive electrode active material including a lithium transition metal oxide, wherein when a lithium battery including a positive electrode including the lithium transition metal oxide is analyzed by differential capacity analysis, an irreversible peak is present in a graph of differential capacity versus voltage in a range of about 4.5 volts versus lithium to about 4.8 volts versus lithium during a first charge/discharge cycle.

Abstract translation: 包括锂过渡金属氧化物的正极活性材料，其中当通过差分电容分析分析包括包含锂过渡金属氧化物的正极的锂电池时，在不同的容量对电压范围的图表中存在不可逆的峰值 在第一充电/放电循环期间，锂的电压约为4.5伏，相对于锂至约4.8伏。