公开(公告)号：US10218033B1

公开(公告)日：2019-02-26

申请号：US14927922

申请日：2015-10-30

Applicant: Google LLC

Inventor： Ramesh C. Bhardwaj ,  Tai Sup Hwang ,  Sujeet Kumar ,  Bing Li ,  Swapnil Dalavi ,  Shabab Amiruddin

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M4/525 ,  H01M4/48 ,  H01M4/02

Abstract: This disclosure relates to a battery and a method for its manufacture. An example method includes forming an anode comprising silicon monoxide and a forming a cathode comprising lithium cobalt oxide. The method also includes arranging the anode, the cathode, and a separator in a layered arrangement. The method further includes winding the layered arrangement to form a wound arrangement, compressing the wound arrangement, and packing it into a pouch. The method yet further includes soaking the wound arrangement in an electrolyte for a predetermined time and at a predetermined temperature. The electrolyte includes a lithium hexafluorophosphate salt dissolved in a solvent including ethylene carbonate and diethylene carbonate in about a 1:2 volume ratio. The additive includes fluoroethylene carbonate in an 8-12% weight ratio.