US 11,721,838 B2
Electrolyte and electrochemical apparatus
Jian Liu, Ningde (CN); Wenqiang Li, Ningde (CN); Jianming Zheng, Ningde (CN); and Xiexue Peng, Ningde (CN)
Assigned to NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde (CN)
Filed by Ningde Amperex Technology Limited, Ningde (CN)
Filed on Mar. 30, 2021, as Appl. No. 17/217,211.
Claims priority of application No. 202010589207.2 (CN), filed on Jun. 24, 2020.
Prior Publication US 2021/0408597 A1, Dec. 30, 2021
Int. Cl. H01M 10/0567 (2010.01); H01M 10/0569 (2010.01); H01M 10/0568 (2010.01); H01M 10/0525 (2010.01); H01M 4/525 (2010.01); C07F 5/02 (2006.01); C07C 261/02 (2006.01); C07C 255/04 (2006.01); C07C 255/03 (2006.01); C07C 255/05 (2006.01); C07C 317/28 (2006.01); H01M 4/02 (2006.01)
CPC H01M 10/0567 (2013.01) [C07C 255/03 (2013.01); C07C 255/04 (2013.01); C07C 255/05 (2013.01); C07C 261/02 (2013.01); C07C 317/28 (2013.01); C07F 5/027 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2004/028 (2013.01); H01M 2300/004 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electrolyte comprising at least one compound selected from the group consisting of:

OG Complex Work Unit Chemistry
a content of the at least one compound accounts for b % of a weight of the electrolyte, wherein b % is 0.1% to 5%; and
lithium difluorophosphate;
a content of the lithium difluorophosphate accounts for a % of the weight of the electrolyte;
wherein a range of a/b is 0.01-6.
 
7. An electrochemical apparatus, comprising a positive electrode, a negative electrode, and an electrolyte comprising at least one compound selected from the group consisting of:

OG Complex Work Unit Chemistry
a content of the at least one compound accounts for b % of a weight of the electrolyte, wherein b % is 0.1% to 5%; and
lithium difluorophosphate;
a content of the lithium difluorophosphate accounts for a % of the weight of the electrolyte;
wherein a range of a/b is 0.01-6.
 
13. An electronic apparatus, comprising an electrochemical apparatus, wherein the electrochemical apparatus, comprising a positive electrode, a negative electrode, and an electrolyte comprising at least one compound selected from the group consisting of

OG Complex Work Unit Chemistry
a content of the at least one compound accounts for b % of a weight of the electrolyte, wherein b % is 0.1% to 5%; and
lithium difluorophosphate;
a content of the lithium difluorophosphate accounts for a % of the weight of the electrolyte;
wherein a range of a/b is 0.01-6.