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公开(公告)号：US20240170729A1
公开(公告)日：2024-05-23
申请号：US18513187
申请日：2023-11-17
Inventor： Dong Ok SHIN , Young-Gi LEE , JINWOO LEE , Myeong Ju LEE , Seong Eun JO , Jaecheol CHOI
IPC: H01M10/0585 , H01M4/134 , H01M10/0525 , H01M10/0562 , H01M10/0569
CPC classification number: H01M10/0585 , H01M4/134 , H01M10/0525 , H01M10/0562 , H01M10/0569 , H01M2004/021
Abstract: Provided is a separator for a lithium secondary battery. The separator for the lithium secondary battery may include a separator substrate, a first coating layer on the separator substrate, and a second coating layer on the first coating layer, wherein the first coating layer includes a solid electrolyte, and the second coating layer includes a lithium compound.
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公开(公告)号：US20230378602A1
公开(公告)日：2023-11-23
申请号：US18319965
申请日：2023-05-18
Inventor： Jaecheol CHOI , Sang Won HWANG , Jun Hee PARK , Young Jae JANG , Young-Gi LEE , Ju Young KIM , Dong Ok SHIN
IPC: H01M50/42 , H01M50/449 , H01M50/446 , H01M50/403
CPC classification number: H01M50/42 , H01M50/449 , H01M50/446 , H01M50/403
Abstract: Provided is a method for manufacturing a binder for coating a secondary battery separator, wherein the method may include performing a first polymerization on a first monomer to form a precursor solution including a chain-type particle, and adding a second monomer to the precursor solution and performing a second polymerization to form an emulsion particle on the chain-type particle. In an embodiment, the second polymerization may include an emulsification polymerization in which the chain-type particle acts as an emulsifier.
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Patent Agency Ranking
公开(公告)号：US20240304856A1
公开(公告)日：2024-09-12
申请号：US18596329
申请日：2024-03-05
Inventor： Seokyoon YOON , YOUNG SAM PARK , Seok Hun KANG , Jaecheol CHOI , Dong Ok SHIN , Young-Gi LEE , Ju Young KIM , Jinyoung KIM
IPC: H01M10/0562 , H01M10/052 , H01M10/058 , H01M50/403 , H01M50/44
CPC classification number: H01M10/0562 , H01M10/052 , H01M10/058 , H01M50/403 , H01M50/44 , H01M2300/0091
Abstract: Provided is a lithium secondary battery including a first electrode, a second electrode spaced apart from the first electrode, a solid electrolyte disposed between the first electrode and the second electrode, wherein the solid electrolyte includes a fibril and a plurality of sulfide particles, the fibril includes polytetrafluoroethylene, the fibril surrounds at least some of the sulfide particles or is in contact with at least some of the sulfide particles.
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公开(公告)号：US20240072297A1
公开(公告)日：2024-02-29
申请号：US18229287
申请日：2023-08-02
Inventor： Jaecheol CHOI , Young-Gi LEE , Ju Young KIM
IPC: H01M10/052 , H01M4/04 , H01M10/0565
CPC classification number: H01M10/052 , H01M4/0404 , H01M10/0565 , H01M2300/0085
Abstract: Provided is a lithium battery including a first electrode structure, a second electrode structure spaced apart from the first electrode structure, and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a metal salt compound catalyst, the metal salt compound catalyst activates a polymerization reaction of a cyclic carbonate in the organic solvent at a first temperature, and the first temperature ranges between about 100° C. and about 200° C.
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公开(公告)号：US20230299349A1
公开(公告)日：2023-09-21
申请号：US18084253
申请日：2022-12-19
Inventor： Jaecheol CHOI , Kwang Man KIM , Young-Gi LEE , Seok Hun KANG , Ju Young KIM , Dong Ok SHIN , Jimin OH
IPC: H01M10/0567 , H01M10/052
CPC classification number: H01M10/0567 , H01M10/052
Abstract: A lithium battery according to the inventive concept includes: a first electrode structure; a second electrode structure separated from the first electrode structure; and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes: a lithium salt; an organic solvent; and an additive, the additive includes a polymer additive, and the polymer additive may be a mixture of at least two or more polymers among a halogen-based polymer, a silicon-based polymer and an acrylic polymer, or a copolymer thereof.
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公开(公告)号：US20250070125A1
公开(公告)日：2025-02-27
申请号：US18792343
申请日：2024-08-01
Inventor： Ju Young KIM , Young-Gi LEE , Jaecheol CHOI , Seok Hun KANG
Abstract: A negative electrode active material for an all-solid-state battery may include first graphite particles, second graphite particles, and silicon particles, wherein the first graphite particles have a spheroidal structure, the second graphite particles have a plate structure, the first graphite particles include about 30 to 80 parts by weight with respect to 100 parts by weight of the negative electrode active material, the second graphite particles include about 10 to 60 parts by weight with respect to 100 parts by weight of the negative electrode active material, and the silicon particles include about 5 to 15 parts by weight with respect to 100 parts by weight of the negative electrode active material.
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公开(公告)号：US20230163356A1
公开(公告)日：2023-05-25
申请号：US17947469
申请日：2022-09-19
Inventor： Young-Gi LEE , Jaecheol CHOI , Sung You HONG , Kwang Man KIM , Jeong Woo LEE , Min Ho JEON , Jimin OH , JINWOO LEE
IPC: H01M10/0567 , H01M10/0525 , H01M10/42
CPC classification number: H01M10/0567 , H01M10/0525 , H01M10/4235 , H01M2300/0037
Abstract: Provided is a lithium battery including a first electrode structure, a second electrode structure spaced apart from the first electrode structure, and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes a lithium salt, an organic solvent, and an additive, wherein the additive includes a coordination compound catalyst represented by Formula 1.
TMX.yH2O [Formula 1]
n Formula 1, TM is a +2-valent transition metal cation, y is an integer of 0 to 6, and X is a −2-valent ligand containing an aromatic ring.
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