公开(公告)号：US20220294013A1

公开(公告)日：2022-09-15

申请号：US17654358

申请日：2022-03-10

Applicant: KOREA BASIC SCIENCE INSTITUTE

Inventor： Hae Jin KIM ,  Won Gi HONG ,  Jong Pil KIM ,  In Jun JEON

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/131 ,  H01M4/133

Abstract: The disclosure relates a to manufacturing method of an all-solid-state lithium secondary battery including a solid polymer electrolyte, including preparing an all-solid-state lithium secondary battery by interposing a polymer electrolyte between a cathode and an anode; hardening the polymer electrolyte by applying a pressure and heat to the all-solid-state lithium secondary battery; activating the all-solid-state lithium secondary battery by applying a current; and removing a gas generated in the activated all-solid-state lithium secondary battery. By hardening a polymer electrolyte interposed between a cathode and an anode through applying a pressure and heat, a bubble or dead area inside solid polymer electrolyte is minimized with providing an electrode having uniform thickness. By repeating activation operation and removing gas, bonding of electrode stack is more enhanced, and stability of a battery is improved.

公开(公告)号：US20220293997A1

公开(公告)日：2022-09-15

申请号：US17654728

申请日：2022-03-14

Applicant: KOREA BASIC SCIENCE INSTITUTE

Inventor： Hae Jin KIM ,  Won Gi HONG ,  Jong Pil KIM ,  In Jun JEON

IPC: H01M10/04 ,  H01M10/0525

Abstract: The disclosure relates to an all-solid-state lithium secondary battery, comprising a first electrode having a first active material formed on a side; a second electrode having a side facing the first active material and having a second active material formed on both sides; and a third electrode having a side facing the other side of the second electrode and having a third active material formed on a side or both sides, wherein a capacity ratio of a positive electrode to a negative electrode (N/P ratio) of each active material formed on adjacent current collectors is 1.0 to 1.2.