NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY AND MANUFACTURE OF THE SAME, AND NONAQUEOUS SECONDARY BATTERY

NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY AND MANUFACTURE OF THE SAME, AND NONAQUEOUS SECONDARY BATTERY

PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous secondary battery, achieving both suppression of reductive decomposition of an electrolyte and an electrolytic solution and suppression of resistance increase.SOLUTION: In a negative electrode for a nonaqueous secondary battery,...

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Hauptverfasser: OSHIMA HIROKI, MIYOSHI MANABU, SATO TOMOYA, YOSHIDA KISENA, ABE TOMOKUNI, AIDA NOBUHIRO
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator OSHIMA HIROKI
MIYOSHI MANABU
SATO TOMOYA
YOSHIDA KISENA
ABE TOMOKUNI
AIDA NOBUHIRO
description PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous secondary battery, achieving both suppression of reductive decomposition of an electrolyte and an electrolytic solution and suppression of resistance increase.SOLUTION: In a negative electrode for a nonaqueous secondary battery, a polymer coat layer coating at least part of the surface of negative electrode active material particles containing silicon oxide (SiO: x satisfies 0.5≤x≤1.6) is formed, and the polymer coat layer contains a cationic polymer having a positive zeta potential in a neutral condition. The silicon oxide has a negative zeta potential, so that a thin and uniform coat layer can be formed by a Coulomb force.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY AND MANUFACTURE OF THE SAME, AND NONAQUEOUS SECONDARY BATTERY
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