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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(shù)領(lǐng)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

The secondary battery according to the first embodiment includes the above-described separator. The separator hardly passes the aqueous solvent and can be thinned. Hence, the secondary battery according to the first embodiment can implement a high energy density and high life characteristics.

Second Embodiment

According to a second embodiment, a battery module is provided. The battery module according to the second embodiment includes plural secondary batteries according to the first embodiment.

In the battery module according to the second embodiment, each of the single batteries may be arranged electrically connected in series, in parallel, or in a combination of in-series connection and in-parallel connection.

An example of the battery module according to the second embodiment will be described next with reference to the drawings.

FIG. 7 is a perspective view schematically showing an example of the battery module according to the second embodiment. A battery module 200 shown in FIG. 7 includes five single-batteries 100a to 100e, four bus bars 21, a positive electrode-side lead 22, and a negative electrode-side lead 23. Each of the five single-batteries 100a to 100e is a secondary battery according to the first embodiment.

權(quán)利要求

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