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Secondary battery, battery pack, vehicle, and stationary power supply

專利號
US10868331B2
公開日期
2020-12-15
申請人
KABUSHIKI KAISHA TOSHIBA（JP Minato-ku）
發(fā)明人
Yasuyuki Hotta; Shinsuke Matsuno; Norio Takami
IPC分類
H01M4/02; H01M10/0565; B60L58/10; H01M2/16; H01M10/0525; H01M10/0585; H01M10/42
技術領域
electrode,separator,battery,negative,solid,positive,in,layer,material,secondary
地域： Minato-ku

摘要

According to one embodiment, a secondary battery is provided. The separator includes a porous self-supporting film, a solid electrolyte layer, and a first binder. The solid electrolyte layer is provided on one main surface of the porous self-supporting film. The porous self-supported film and the solid electrolyte layer are adhered with the first binder. The first binder exists on both of the one main surface and another main surface of the porous self-supporting film. The solid electrolyte layer includes solid electrolyte particles and a second binder. The solid electrolyte particles have alkali metal ions conductivity. The polymeric material of the second bonder is a same as the polymeric material of the first material.

說明書

Each bus bar 21 connects a negative electrode terminal 6 of one single-battery 100a and a positive electrode terminal 7 of the single-battery 100b positioned adjacent. The five single-batteries 100 are thus connected in series by the four bus bars 21. That is, the battery module 200 shown in FIG. 7 is a battery module of five in-series connection.

As shown in FIG. 7, the positive electrode terminal 7 of the single-battery 100a located at one end on the left among the row of the five single-batteries 100a to 100e is connected to the positive electrode-side lead 22 for external connection. In addition, the negative electrode terminal 6 of the single-battery 100e located at the other end on the right among the row of the five single-batteries 100a to 100e is connected to the negative electrode-side lead 23 for external connection.

The battery module according to the second embodiment includes the secondary battery according to the first embodiment. Hence, the battery module according to the second embodiment can implement a high energy density and high life characteristics.

Third Embodiment

According to a third embodiment, a battery pack is provided. The battery pack includes a battery module according to the second embodiment. The battery pack may include a single secondary battery according to the first embodiment, in place of the battery module according to the second embodiment.

權利要求

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