Positive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary battery

Positive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary battery

A positive electrode material for a lithium ion secondary battery, including core particles and a carbonaceous film coating a surface of the core particles, in which in a Raman spectrum analysis of the carbonaceous film, in a case where a peak intensity of a spectrum in a wave number band of 1,200 t...

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Hauptverfasser: Nozoe, Tsutomu, Nakano, Toyomasa
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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 Nozoe, Tsutomu
Nakano, Toyomasa
description A positive electrode material for a lithium ion secondary battery, including core particles and a carbonaceous film coating a surface of the core particles, in which in a Raman spectrum analysis of the carbonaceous film, in a case where a peak intensity of a spectrum in a wave number band of 1,200 to 1,400 cm−1 is set as D, a minimum intensity of 1,400 to 1,550 cm−1 is set as V, and a peak intensity of the spectrum of 1,550 to 1,700 cm−1 is set as G, an average D/G is 0.77 or more and 0.98 or less and an average V/G is 0.50 or more and 0.66 or less, and in a case where the average D/G is set as a and the average V/G is set as b, X falls within a range of −0.1≤X≤0.1 in Expression X=a−1.47b.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Positive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary battery
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