Negative electrode for lithium ion secondary battery

The present invention relates to a negative electrode for a lithium ion secondary battery. And a negative electrode including a negative electrode active material layer including a lower layer portion facing the surface of the current collector and an upper layer portion disposed on top of the lower...

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Bibliographic Details
Main Authors CHOI JUNG-HYUN, LEE YONG-JU, SHIN SUN-YOUNG, LEE SU-MIN, PARK SE-MI
Format Patent
LanguageChinese
English
Published 06.06.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present invention relates to a negative electrode for a lithium ion secondary battery. And a negative electrode including a negative electrode active material layer including a lower layer portion facing the surface of the current collector and an upper layer portion disposed on top of the lower layer portion, in which the upper layer portion includes graphite as a negative electrode active material and a silicon oxide having a sphericity of 0.1 to 0.95, and the negative electrode active material layer includes a linear conductive material. 本发明涉及一种锂离子二次电池用负极。所述负极包括负极活性材料层，所述负极活性材料层包括面向集流体表面的下层部分和设置在下层部分的顶部上的上层部分，其中，上层部分包括作为负极活性材料的石墨和硅氧化物，所述硅氧化物具有0.1至0.95的球形度，并且负极活性材料层包括线型导电材料。
Bibliography:Application Number: CN202180066796