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US 11,387,443 B1Granted
Silicon based lithium ion battery and improved cycle life of same
AssigneeEnevate Corporation
InventorsHong Zhao, Younes Ansari, Vincent Giordani, Mya Le Thai, Qing Zhang, Benjamin Park
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Abstract
Silicon-dominate battery electrodes, battery cells utilizing the silicon-dominate battery electrodes, and methods of manufacturing are disclosed. Such a battery cell includes a cathode, a separator, an electrolyte, and an anode. The anode comprises a current collector and active material on the current collector. The active material layer includes at least 50% silicon. A ratio of the electrolyte to Ah is over 2 g/Ah.
Claims38
A battery cell comprising:
- a cathode;
- a separator;
- an electrolyte;
- and
- an anode;
- wherein the anode comprises a current collector and active material layer on the current collector;
- wherein the active material layer comprises at least 50% silicon;
- wherein a ratio of the electrolyte to Ah for the battery cell is greater than 2 g/Ah;
- wherein the anode has an areal capacity between 9 mAh/cm2 and 15 mAh/cm2;
- and
- wherein the electrolyte comprises 0.02 to 0.1 mL/cm2 of the anode that participates in an electrochemical reaction.
8 more elements
A battery cell comprising:
- a cathode;
- a separator;
- an electrolyte;
- and
- an anode;
- wherein the anode comprises a current collector and active material layer on the current collector;
- wherein the active material layer comprises at least 50% silicon;
- wherein a ratio of the electrolyte to Ah for the battery cell is greater than 2 g/Ah;
- wherein the anode has an areal capacity between 5 mAh/cm2 and 11 mAh/cm2;
- and
- wherein the electrolyte comprises 0.005 to 0.05 mL/cm2 of the anode that participates in an electrochemical reaction.
8 more elements
Dependencies are inferred from the claim text.