NEGATIVE ELECTRODE CURRENT COLLECTOR, NEGATIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY

To provide a lithium secondary battery excellent in cycle characteristics, and a negative electrode current collector and a negative electrode suitable for the same.SOLUTION: The negative electrode current collector includes at least one crystal particle selected from a group consisting of copper, n...

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Main Authors HIRABAYASHI SACHIKO, TANIKI RYOSUKE, KAGAYA YASUNAGA, TAKAGI YASUHIRO
Format Patent
LanguageEnglish
Japanese
Published 22.08.2019
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:To provide a lithium secondary battery excellent in cycle characteristics, and a negative electrode current collector and a negative electrode suitable for the same.SOLUTION: The negative electrode current collector includes at least one crystal particle selected from a group consisting of copper, nickel, stainless steel, and titanium. An average crystallite size of the crystal particles is 330 Å or more and 380 Å or less.SELECTED DRAWING: Figure 1 【課題】サイクル特性に優れたリチウム二次電池及びこれに適した負極集電体及び負極を提供することを目的とする。【解決手段】本発明の一態様に係る負極集電体は、銅、ニッケル、ステンレス鋼、チタンからなる群から選択される少なくとも一つの結晶粒子を有し、前記結晶粒子の平均結晶子サイズが３３０Å以上３８０Å以下である。【選択図】図１
Bibliography:Application Number: JP20180024835