公开(公告)号：US10587004B2

公开(公告)日：2020-03-10

申请号：US15768009

申请日：2016-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadayoshi Takahashi ,  Tomohiro Yagishita ,  Toshie Wata

IPC: H01M10/0525 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/48 ,  H01M4/38 ,  H01M4/62 ,  H01M4/134

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and negative electrode, and a nonaqueous electrolyte. The positive electrode includes vanadium pentoxide, a first carbon black, and a first binder. The negative electrode includes a silicon-containing material, graphite, a second carbon black, and a second binder. When the battery voltage is 0 V, the potential of each of the positive electrode and negative electrode is 2.5 to 3.5 V versus metal lithium.

公开(公告)号：US20230006259A1

公开(公告)日：2023-01-05

申请号：US17779848

申请日：2020-12-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jun Kumagai ,  Toshie Wata

IPC: H01M10/0583

Abstract: Positive and negative electrode plates of a battery include positive electrode units aligned and connected to one another and negative electrode units aligned and connected to one another, respectively. The electrode plates are folded, in a zigzag pattern, alternately in opposite directions at fold portions each being a boundary between corresponding adjacent two positive electrode units and at fold portions each being a boundary between corresponding adjacent two negative electrode units. The electrode plates and a separator are arranged such that an active material layer on the positive electrode units faces an active material layer on the negative electrode units across the separator, and the fold portions face the fold portions across the separator. The length of each positive electrode unit is greater than the length of each negative electrode units in a direction in which the electrode units are aligned, respectively.