公开(公告)号：WO2020139823A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/068303

申请日：2019-12-23

Applicant: WORCESTER POLYTECHNIC INSTITUTE

Inventor： WANG, Yan ,  ZHENG, Zhangfeng ,  LUDWIG, Brandon ,  PAN, Heng ,  LIU, Jin ,  LIU, Yangtao

IPC: H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0585

Abstract: A dry electrode manufacturing process is employed for low cost battery through a dry mixing and formation process. A thermal activation renders the dry fabricated electrode comparable to conventional slurry casted electrodes. The dry electrode mixture results from a combination of a plurality of types of constituent particles, including at least an active charge material and a binder, and typically a conductive material such as carbon. The process heats the deposited mixture to a moderate temperature for activating the binder for adhering the mixture to the substrate, and compresses the deposited mixture to a thickness for achieving an electrical sufficiency of the compressed, deposited mixture as a charge material in a lithium-ion battery. In order to increase the bonding between the current collector and charge materials, an adhesive interlayer is applied through dry printing.