公开(公告)号：US20210344017A1

公开(公告)日：2021-11-04

申请号：US17261553

申请日：2019-07-19

Applicant: CellMobility, Inc.

Inventor： Kicheol Hong ,  Hyeji Park ,  Youngseok Song ,  Kyungbae Kim ,  Heeman Choe

IPC: H01M4/80 ,  H01M4/505 ,  H01M4/66 ,  H01M4/525 ,  H01M4/1395 ,  B22F3/11 ,  H01M10/0525 ,  B22F3/26 ,  C22C1/08

Abstract: Anode and cathode electrodes of a rechargeable lithium-ion battery are manufactured using metal foam. This lithium-ion battery with the metal-foam electrodes can have pores coated or filled, or both, with high-capacity active materials for greater energy density, better safety, improved power, and longer cycle life. Aluminum (or nickel) and copper metal-foam electrodes are manufactured using space-holder and freeze-casting methods. An anode can be filled with a graphite or silicon slurry, or a combination. A cathode can be filled with a lithium cobalt oxide (or other higher-capacity active materials) slurry. The relatively thick metal-foam electrodes are attached to the cell, separated by a separator, and wetted by an electrolyte, forming a high-capacity secondary battery. The battery will have higher density, improved power, and good cycle life.