公开(公告)号：US20240047747A1

公开(公告)日：2024-02-08

申请号：US18229913

申请日：2023-08-03

Applicant: Seoul National University R&DB Foundation

Inventor： Jang Wook CHOI ,  Minkwan KIM

IPC: H01M10/0567 ,  H01M10/36 ,  H01M10/02 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/38 ,  H01M4/60

CPC classification number: H01M10/0567 ,  H01M10/36 ,  H01M10/02 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/38 ,  H01M4/606 ,  H01M2004/027

Abstract: Disclosed is a zinc rechargeable battery, the zinc rechargeable battery including a positive electrode, a zinc-containing negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein the electrolyte includes a solvent, a zinc salt, and a low kex cation having a solvent exchange rate constant (kex) of less than or equal to about 103 s−1, and in the electrolyte, a molal concentration of the low kex cation in the electrolyte is lower than a molal concentration of a zinc ion.

公开(公告)号：US20240055587A1

公开(公告)日：2024-02-15

申请号：US18229918

申请日：2023-08-03

Applicant: Seoul National University R&DB Foundation

Inventor： Jang Wook CHOI ,  Minkwan KIM ,  Jimin LEE

IPC: H01M4/42 ,  H01M4/52 ,  H01M4/50 ,  H01M50/46

CPC classification number: H01M4/42 ,  H01M4/52 ,  H01M4/50 ,  H01M50/46 ,  H01M2004/027

Abstract: Disclosed is a zinc rechargeable battery, the zinc rechargeable battery including a positive electrode, a zinc-containing negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein the zinc rechargeable battery includes an additive and the additive is a compound having a donor number of about 32 or more.

公开(公告)号：US20230207817A1

公开(公告)日：2023-06-29

申请号：US18146041

申请日：2022-12-23

Applicant: Samsung SDI Co., Ltd. ,  Seoul National University R&DB Foundation

Inventor： Jungmin LEE ,  Yunshik CHO ,  Kiho PARK ,  Jaemin KIM ,  Jang Wook CHOI

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/052

CPC classification number: H01M4/622 ,  H01M4/0404 ,  H01M10/052 ,  H01M2004/027

Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode for a rechargeable lithium battery includes a current collector and a negative active material layer on the current collector, wherein the negative active material layer comprises a negative active material, a binder, and a polyhydric alcohol plasticizer having 2 to 5 OH groups per molecule of the polyhydric alcohol plasticizer, and the binder is an aqueous linear polymer binder including a cellulose-based compound, an acrylate-based compound, or a combination thereof.

公开(公告)号：US20240194880A1

公开(公告)日：2024-06-13

申请号：US18554630

申请日：2022-04-04

Applicant: Seoul National University R&DB Foundation

Inventor： Jang Wook CHOI ,  Taegeun LEE

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/414

CPC classification number: H01M4/622 ,  H01M50/414 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2300/0068

Abstract: The present disclosure relates to a binder for an all-solid-state lithium secondary battery wherein the carboxyl group of mercaptocarboxylic acid is grafted in a butadiene polymer, wherein a molar ratio of the carboxyl group to the butadiene polymer is 0.1-30:100, a binder for an all-solid-state lithium secondary battery containing the same, an all-solid-state lithium secondary battery electrode composite containing the same, a separator in an all-solid-state lithium secondary battery containing the same, and an all-solid-state lithium secondary battery containing the same. Since the binder for an all-solid-state lithium secondary battery of the present disclosure can satisfy stability, solubility, polarity and adhesive property at the same time, it can significantly accelerate the commercialization of an all-solid-state battery based on a wet process.

公开(公告)号：US20220037665A1

公开(公告)日：2022-02-03

申请号：US17332413

申请日：2021-05-27

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  Seoul National University R&DB Foundation

Inventor： Sang Mo KIM ,  Tae Young KWON ,  Ju Yeon LEE ,  Sung Hoo JUNG ,  Jang Wook CHOI ,  Ji Eun LEE

IPC: H01M4/62 ,  C08L33/10 ,  C08L33/12 ,  C08L47/00 ,  H01M4/525 ,  H01M4/505 ,  H01M4/04 ,  H01M4/1391 ,  H01M10/0525

Abstract: A composite binder composition for an all-solid-state battery includes: a first polymer comprising a repeating structure represented by Chemical Formula 1a or Chemical Formula 1b below, and a second polymer comprising at least one selected from a group consisting of diene-based rubber, polysiloxane, and combinations thereof: