公开(公告)号：US20230327076A1

公开(公告)日：2023-10-12

申请号：US18008847

申请日：2021-12-17

Applicant: Google LLC

Inventor： Taisup Hwang ,  Ramesh C. Bhardwaj ,  Lei Cao ,  Dookyoung Lee ,  Qiang Luo

IPC: H01M4/133 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/38 ,  H01M4/62 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/131

CPC classification number: H01M4/133 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/386 ,  H01M4/622 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/131 ,  H01M2300/0034 ,  H01M2300/0042

Abstract: Composite lithium ion batteries having an anode with an anode collector and a composite anode material, a cathode with a cathode collector and a composite cathode material, a separator positioned between the anode and the cathode, and an electrolyte in contact with the anode and the cathode. Advantages of the composite lithium ion batteries include lower DC impedance, faster charging times, more reserve capacity between 3.0V and 2.5V, and an increased volumetric energy density relative to lithium ion batteries that do not include the described composite material electrodes.