US Patent Application 17824601. CARBON ADDITIVES FOR SILICON-CONTAINING ELECTRODES simplified abstract

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CARBON ADDITIVES FOR SILICON-CONTAINING ELECTRODES

Organization Name

GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor(s)

Nicole Ellison of Southfield MI (US)

Xiaosong Huang of Novi MI (US)

Anita Li of Ann Arbor MI (US)

CARBON ADDITIVES FOR SILICON-CONTAINING ELECTRODES - A simplified explanation of the abstract

This abstract first appeared for US patent application 17824601 titled 'CARBON ADDITIVES FOR SILICON-CONTAINING ELECTRODES

Simplified Explanation

The abstract describes an electrode for an electrochemical cell that cycles lithium ions.

  • The electrode contains a silicon-containing electroactive material, three different types of carbon additives, and specific weight percentages of each component.
  • The first carbon additive has an aspect ratio between 1 and 3, the second carbon additive has an aspect ratio between 3 and 500, and the third carbon additive has an aspect ratio between 20 and 10,000.
  • The electrode consists of 80-97% silicon-containing electroactive material, 0.5-15% of the first carbon additive, 0.1-15% of the second carbon additive, and 0.01-5% of the third carbon additive.


Original Abstract Submitted

The present disclosure provides an electrode for an electrochemical cell that cycles lithium ions. The electrode includes a silicon-containing electroactive material, a first carbon additive having a first aspect ratio greater than or equal to about 1 to less than or equal to about 3, a second carbon additive having a second aspect ratio greater than or equal to about 3 to less than or equal to about 500, and a third carbon additive having a third aspect ratio greater than or equal to about 20 to less than or equal to about 10,000. The electrode includes between about 80 wt. % and about 97 wt. % of the silicon-containing electroactive material, between about 0.5 wt. % and about 15 wt. % of the first carbon additive, between about 0.1 wt. % and about 15 wt. % of the second carbon additive, and between about 0.01 wt. % and about 5 wt. % of the third carbon additive.

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