Electrolyte, electrochemical device, lithium ion secondary battery, and module

Patent metadata

Field	Value
Publication number	US-2025174720-A1
Application number	US-202519031004-A
Country	US
Kind code	A1
Filing date	Jan 17, 2025
Priority date	Jan 30, 2018
Publication date	May 29, 2025
Grant date	—

Abstract

An electrolyte solution containing at least one compound represented by formula (1-1) and formula (1-2), formula (1-1) being:

where R 101 is an optionally fluorinated C1-C7 alkyl group, an optionally fluorinated C2-C8 alkenyl group, an optionally fluorinated C2-C9 alkynyl group, or an optionally fluorinated C6-C12 aryl group, and optionally contains at least one selected from O, Si, S, and N in a structure; and formula (1-2) being:

where R 102 and R 103 are (i) each individually H, F, an optionally fluorinated C1-C7 alkyl group, an optionally fluorinated C2-C7 alkenyl group, an optionally fluorinated C2-C9 alkynyl group, or an optionally fluorinated C5-C12 aryl group, or (ii) hydrocarbon groups binding to each other to form a 5-membered or 6-membered hetero ring with a nitrogen atom; and R 102 and R 103 each optionally contain at least one selected from O, S, and N in a structure.

First claim

1 . A compound represented by the following formula (12):

wherein R 112 and R 113 are (i) each individually F, a non-fluorinated C1-C7 alkyl group, a fluorinated C1-C5 alkyl group, an optionally fluorinated C3-C7 alkenyl group, or an optionally fluorinated C3-C7 alkynyl group, and at least one selected from the group consisting of R 112 and R 113 is F, a non-fluorinated C3-C7 alkyl group, a fluorinated C1-C5 alkyl group, an optionally fluorinated C3-C7 alkenyl group, or an optionally fluorinated C3-C7 alkynyl group, or (ii) hydrocarbon groups binding to each other to form a 5-membered or 6-membered hetero ring with a nitrogen atom; and R 112 and R 113 each optionally contain at least one selected from the group consisting of O, S, and N in a structure.

Assignees

• Daikin Ind Ltd

Inventors

• Kuwajima Yoshiko
• Yamauchi Akiyoshi
• Suzuki Yuuki
• Hayashi Kotaro
• Nakamura Hisako
• Yamada Takaya
• Shimooka Toshiharu
• Yamamoto Yoshihiro
• Yamazaki Shigeaki
• Takahashi Kenzou

Classifications

• H01M2300/0025

  Organic electrolyte · CPC title

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• C07D295/185

  from aliphatic carboxylic acids · CPC title

• C07C233/13

  with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom · CPC title

• C07C233/09

  with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton · CPC title