Dispersion for non-aqueous electrolyte secondary batteries, composition for electrodes for non-aqueous electrolyte secondary batteries using the same, electrode for non-aqueous electrolyte secondary batteries, non-aqueous electrolyte secondary battery

JP7871579B2Active Publication Date: 2026-06-09TOYO INK MFG CO LTD +1
View PDF 5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYO INK MFG CO LTD
Filing Date
2022-04-05
Publication Date
2026-06-09

AI Technical Summary

Benefits of technology

【0011】 本発明により、電解液又は電解液溶剤中において高い分散性を有する非水電解質二次電池用分散液を提供することができる。また本発明により、優れた電池特性を発現可能な非水電解質二次電池用電極用組成物、並びに、該組成物を用いてなる、電池特性に優れる非水電解質二次電池用電極及び非水電解質二次電池を提供することができる。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007871579000001
    Figure 0007871579000001
  • Figure 0007871579000002
    Figure 0007871579000002
Patent Text Reader

Abstract

To provide: a dispersion for a nonaqueous electrolyte secondary battery, which has high dispersibility; a composition for an electrode for a nonaqueous electrolyte secondary battery, which allows a superior battery resistance to be exhibited; an electrode for a nonaqueous electrolyte secondary battery using the composition having excellent battery characteristics; and a nonaqueous electrolyte secondary battery.SOLUTION: The above problem is solved by a dispersion for a nonaqueous electrolyte secondary battery, which comprises a carbon material, a dispersant and a carbonate-based solvent. When a BET specific surface area of the carbon material is denoted by Xm2 / g, and a content of the dispersant relative to 100 pts.mass of the carbon material is denoted by Y pts.mass, Y / (X×100) is in a range of 0.0001 or more and 0.006 or less.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art

Claims

1. A dispersion for a non-aqueous electrolyte secondary battery comprising a carbon material, a dispersant, and a carbonate-based solvent, The BET specific surface area of ​​the carbon material is Xm ２ A dispersion for a non-aqueous electrolyte secondary battery, wherein, when the content of the dispersant per 100 parts by mass of the carbon material is Y parts by mass, the value of Y / (X × 100) is in the range of 0.0001 or more and 0.006 or less.

2. The dispersion for a non-aqueous electrolyte secondary battery according to claim 1, wherein the dispersant is a nonionic resin-type dispersant.

3. A composition for an electrode for a non-aqueous electrolyte secondary battery, comprising the dispersion for a non-aqueous electrolyte secondary battery described in claim 1 or 2, and an active material.

4. An electrode for a non-aqueous electrolyte secondary battery, formed using the electrode composition for a non-aqueous electrolyte secondary battery described in claim 3.

5. A non-aqueous electrolyte secondary battery comprising electrodes for a non-aqueous electrolyte secondary battery as described in claim 4.