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METHODS FOR PREPARING ANODES FROM ANODE ACTIVE MATERIAL PARTICLES WITH LITHIUM BORATES AND PHOSPHATES COATINGS

  • US 20190148722A1
  • Filed: 01/09/2019
  • Published: 05/16/2019
  • Est. Priority Date: 04/07/2016
  • Status: Active Grant
First Claim
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1. A method for preparing a lithium ion cell, comprising:

  • replacing a native oxide on a surface of anode active material particles that comprise at least one of Si, Ge, Sn and Al, by a layer of B2O3,coating the anode active material particles by at least one coating that comprises at least one of a boron oxide, a phosphorus oxide, a borate, a phosphate and/or salts thereof,preparing an anode from the anode active material particles, andpreparing a lithium ion cell using the prepared anode.

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