Binder for lithium ion battery electrode, paste for lithium ion battery negative electrode, and method for producing lithium ion battery negative electrode

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United States of America Patent

PATENT NO 9865879
APP PUB NO 20130260020A1
SERIAL NO

13990106

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention is directed to a binder for a lithium ion battery electrode, comprising a polyimide precursor having a tetracarboxylic acid residue and a diamine residue and/or a polyimide, the polyimide precursor having a residue of a tetracarboxylic dianhydride selected from those represented by the following general formulas (1) and (2) as the tetracarboxylic acid residue, and a residue of a diamine selected from those represented by the following general formulas (3) and (4) as the diamine residue, the content of the acid residue being from 0.90 to 0.95 moles based on 1 mole of the diamine residue.

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Patent Owner(s)

Patent OwnerAddress
TORAY INDUSTRIES INCTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

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  • 2011 Application Filing Year
  • H01M Class
  • 3434 Applications Filed
  • 3132 Patents Issued To-Date
  • 91.21 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20112012201320142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chayama, Natsuko Otsu, JP 8 51
Tomikawa, Masao Otsu, JP 36 230
Yuba, Tomoyuki Otsu, JP 15 88

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges8301649116263101 - 1011 - 2021 - 3031 - 4041 - 500100200300400500600700800900100011001200130014001500160017001800

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