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US 2022/0190330 A1Published application
Positive electrode enabling fast charging
AssigneeMedtronic, Inc.
InventorsHui Ye, Prabhakar A. Tamirisa
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Abstract
A rechargeable lithium-ion battery includes a positive electrode enabling fast charging. A negative electrode has a first active material including Li4Ti5O12. A positive electrode includes a second active material including LiCoO2. The positive electrode further includes a carbon conductive agent and a binder. A weight ratio of the carbon conductive agent to the binder is in a range of about 2:3 to about 3:2.
Claims20
A rechargeable lithium-ion battery comprising:
- a negative electrode comprising a first active material comprising Li4Ti5O12;
- a positive electrode comprising:
- a second active material comprising LiCoO2;
- a carbon conductive agent;
- and
- a binder, wherein a weight ratio of the carbon conductive agent to the binder is in a range of about 2:3 to about 3:2.
3 more elements
A rechargeable lithium-ion battery comprising:
- a negative electrode comprising a first active material comprising Li4Ti5O12;
- a positive electrode comprising:
- a second active material comprising LiCoO2;
- a carbon conductive agent comprising a weight ratio of carbon black and graphite in a range of about 1:9 to about 9:1
- a binder, wherein a weight ratio of the carbon conductive agent to the binder is in a range of about 2:3 to about 3:2.
2 more elements
A rechargeable lithium-ion battery comprising:
- a negative electrode comprising a first active material comprising Li4Ti5O12;
- a positive electrode comprising:
- a second active material comprising LiCoO2;
- a carbon conductive agent;
- and
- a binder, wherein a weight ratio of the carbon conductive agent, C, to the binder, PVDF is characterized by:
- 12.5−362.6·C+356.1·PVDF+(C−0.020)·((PVDF−0.023)·(−39629.6)<15 (mins);
- 1.)
- 623.34−1251.85·C−1577.78·PVDF+7407.41·(C−0.0195)·((PVDF−0.023)>550 (mAh);
- 2.)
- 0.164+4.82·C−8.47·PVDF−664.4·(C−0.0195)·((PVDF−0.023)<0.2(%);
- and) 3.)
- −0.278−7.648·C+66.78·PVDF+623.34−1251.853592.59·(C−0.0195)·((PVDF−0.023)>0.5 (lbs). 4.)
10 more elements
Dependencies are inferred from the claim text.