公开(公告)号：US20240204182A1

公开(公告)日：2024-06-20

申请号：US18221857

申请日：2023-07-13

Applicant: CYNTEC CO., LTD.

Inventor： Pei-I Wei ,  Kai-Pin Huang ,  Kai-Hsiang Liang

IPC: H01M4/525 ,  G01N23/2251 ,  H01M4/133 ,  H01M4/62

CPC classification number: H01M4/525 ,  G01N23/2251 ,  H01M4/133 ,  H01M4/623 ,  H01M2004/021

Abstract: An electrode plate having active substance of electrochemical energy storage device is provided in the present invention, including a current collector and an electrode formed of active substance on the current collector, wherein the active substance includes first particles in form of spherical powder and second particles in form of monocrystalline structure, and an average particle size of the first particles is larger than or equal to three times of an average particle size of the second particles, and a volume ratio of the first particles in the active substance is greater than a volume ratio of the second particles in the active substance, and a breakage rate of said electrode formed by mixed first particles and second particles in rolling pressing process is smaller than or equal to 40%.