POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY

To provide a positive electrode material for a lithium ion secondary battery, improved in energy density and safety without sacrificing high-speed charge/discharge characteristics.SOLUTION: A positive electrode material for a lithium ion secondary battery includes olivine-based positive electrode ac...

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Bibliographic Details
Main Author KAWAMURA HIROAKI
Format Patent
LanguageEnglish
Japanese
Published 02.04.2020
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:To provide a positive electrode material for a lithium ion secondary battery, improved in energy density and safety without sacrificing high-speed charge/discharge characteristics.SOLUTION: A positive electrode material for a lithium ion secondary battery includes olivine-based positive electrode active material particles coated with conductive carbon which are supported on the surfaces of layered oxide-based positive electrode active material particles at a surface loading rate of 40% or more and 85% or less.SELECTED DRAWING: Figure 1 【課題】高速充放電特性を犠牲にすることなくエネルギー密度と安全性を向上させたリチウムイオン二次電池用正極材料を提供する。【解決手段】層状酸化物系正極活物質粒子の表面に、導電性カーボンでコートされたオリビン系正極活物質粒子が表面担持率４０％以上８５％以下で担持されてなるリチウムイオン二次電池用正極材料。【選択図】図１
Bibliography:Application Number: JP20190145143