公开(公告)号：US20230238562A1

公开(公告)日：2023-07-27

申请号：US18101323

申请日：2023-01-25

Applicant: 24M Technologies, Inc.

Inventor： Yuki KUSACHI ,  Junzheng CHEN ,  Naoki OTA ,  Bradley Richard MILESON ,  Matthew Bonju LIM ,  Ryan Michael LAWRENCE

IPC: H01M10/04

CPC classification number: H01M10/0404 ,  H01M2010/4292

Abstract: Embodiments described herein relate to electrochemical cells and production thereof under high pressure. In some aspects, a method of producing an electrochemical cell can include disposing a cathode material onto a cathode current collector to form a cathode, disposing an anode material onto an anode current collector to form an anode, and disposing the anode onto the cathode in an assembly jig with a separator positioned between the anode and the cathode to form an electrochemical cell, the assembly jig applying a force to the electrochemical cell such that a pressure in the cathode material is at least about 3,500 kPa. In some embodiments, the cathode material can be a first cathode material, and the method can further include disposing a second cathode material onto the first cathode material. In some embodiments, the first cathode material can include silicon. In some embodiments, the second cathode material can include graphite.

公开(公告)号：US20220238923A1

公开(公告)日：2022-07-28

申请号：US17581583

申请日：2022-01-21

Applicant: 24M Technologies, Inc.

Inventor： Junzheng CHEN ,  Landon OAKES ,  Naoki OTA ,  Matthew Bonju LIM

IPC: H01M10/0585 ,  H01M4/04 ,  H01M10/0569 ,  H01M10/0568

Abstract: Embodiments described herein relate generally to semi-solid electrodes, and methods of producing the same. In some embodiments, a method of forming a semi-solid electrode can include mixing an active material, a conductive material, and an electrolyte solvent to produce a semi-solid material. The electrolyte solvent is free of electrolyte salt. The method further includes dispensing the semi-solid material onto a current collector and wetting the semi-solid material with an electrolyte solution to form the semi-solid electrode. In some embodiments, the wetting can be via spraying. In some embodiments, the electrolyte salt can have a concentration in the electrolyte solution of at least about 1 M, at least about 2M, or at least about 3 M. In some embodiments, the solvent can include ethyl methyl carbonate (EMC), ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), gamma-Butyrolactone (GBL), or any combination thereof.