BATTERY POSITIVE ELECTRODE

PROBLEM TO BE SOLVED: To provide a stable positive electrode paint film which prevents the viscosity rise of a slurry and having high paint film accuracy by adding a slurry stabilizer to the slurry constituted of a lithium-nickel composite oxide, a conductive auxiliary, a fluororesin, and a diluent,...

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Bibliographische Detailangaben
Hauptverfasser: SHIMIZU HIROYUKI, MORITA KIMIHIRO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a stable positive electrode paint film which prevents the viscosity rise of a slurry and having high paint film accuracy by adding a slurry stabilizer to the slurry constituted of a lithium-nickel composite oxide, a conductive auxiliary, a fluororesin, and a diluent, and applying the solution to a current collector. SOLUTION: A slurry stabilizer is dissolved in a diluent such as a dimethyl sulfoxide, then a fluororesin such as polyvinylidene fluoride as a binder is dissolved. A positive electrode active material of a Li-Ni composite oxide expressed by LiXNiYNZMWO2 (where N is a transition metal, M is B, Al, In, Sn, Mg, or Zn, 0.01