公开(公告)号：US20200303777A1

公开(公告)日：2020-09-24

申请号：US16754784

申请日：2018-10-15

Applicant: GS Yuasa International Ltd.

Inventor： Yudai KAWASOE ,  Kenta NAGAMINE ,  Keisuke ANAMI

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M4/13 ,  H01M10/0568

Abstract: A nonaqueous electrolyte secondary battery disclosed herein includes a positive electrode plate including a positive composite layer, a negative electrode plate including a negative composite layer, and a nonaqueous electrolyte, in which the negative composite layer is composed of a facing portion facing a surface of the positive composite layer, and a non-facing portion that is on the same surface as the facing portion and does not face the surface of the positive composite layer, and the area ratio of the non-facing portion to a combined area of the facing portion and the non-facing portion of the negative composite layer is 7% or more, and the nonaqueous electrolyte contains a fluorinated carbonate and a cyclic sulfone compound.

公开(公告)号：US20160276708A1

公开(公告)日：2016-09-22

申请号：US15069463

申请日：2016-03-14

Applicant: GS Yuasa International Ltd.

Inventor： Yudai KAWASOE ,  Kenta NAGAMINE ,  Keisuke ANAMI

IPC: H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M2220/20 ,  H01M2300/0025

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode and an electrolyte solution, wherein the negative electrode includes a negative active material layer, the electrolyte solution contains fluoroethylene carbonate, and when a content (mg) of the fluoroethylene carbonate is denoted as X and a reaction area (m2) of the negative active material layer is denoted as Y, X and Y satisfy a relation of 10≦(X/Y)≦100.

Abstract translation: 非水电解质二次电池包括正极，负极和电解质溶液，其中所述负极包括负极活性物质层，所述电解质溶液含有氟代碳酸亚乙酯，并且当所述氟代亚乙基碳酸酯的含量（mg）表示为 X和负极活性物质层的反应面积（m2）表示为Y，X和Y满足关系式10≤（X / Y）≤100。