公开(公告)号：US20230083742A1

公开(公告)日：2023-03-16

申请号：US17901019

申请日：2022-09-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong Ok SHIN ,  Young Gi LEE ,  Jae Cheol CHOI ,  Ju Young KIM ,  Seok Hun KANG ,  Young Sam PARK

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/44 ,  H01M10/48

Abstract: An all-solid-state battery for an ion-conducting binder evaluation system for a secondary battery may comprise: an electrode manufactured with an electrode composition, which includes electrode active materials and a binder, so that ion transport in the electrode is dependent on a mechanism of ion diffusion between the electrode active materials by excluding an electrolyte component from the electrode; a counter electrode disposed to face the electrode; and a solid electrolyte layer disposed between the electrode and the counter electrode, wherein a pore density of the electrode, which is an electrolyte-free electrode, is less than or equal to 15% of an electrode bulk density.

公开(公告)号：US20230133648A1

公开(公告)日：2023-05-04

申请号：US17715296

申请日：2022-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ju Young KIM ,  Young Gi LEE ,  Seok Hun KANG ,  Young Sam PARK ,  Dong Ok SHIN ,  Jae Cheol CHOI

IPC: C08F16/06 ,  H01M4/62

Abstract: A composition of aqueous slurry capable of exerting uniform coating on a hydrophobic separator for a secondary battery is disclosed. Unlike other aqueous polymers, a polyvinyl alcohol-based polymer can be physically and chemically bound to a surface of a hydrophobic separator made of polyolefins such as polyethylene, polypropylene, and the like. Therefore, when the aqueous slurry including the polyvinyl alcohol-based polymer is fabricated and a hydrophobic separator is coated with the aqueous slurry, the hydrophobic separator may be smoothly coated with the aqueous slurry.