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

專(zhuān)利號(hào)
US10868331B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
KABUSHIKI KAISHA TOSHIBA（JP Minato-ku）
發(fā)明人
Yasuyuki Hotta; Shinsuke Matsuno; Norio Takami
IPC分類(lèi)
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(shuō)明書(shū)

Examples of the positive electrode active material capable of obtaining a high positive electrode potential are a lithium manganese composite oxide having a spinel structure such as LixMn2O4 (0<x≤1) or LixMnO2 (0<x≤1), a lithium nickel aluminum composite oxide such as LixNi1-yAlyO2 (0<x≤1, and 0<y<1), a lithium cobalt composite oxide such as LixCoO2 (0<x≤1), a lithium nickel cobalt composite oxide such as LixNi1-y-zCoyMnzO2 (0<x≤1, 0<y<1, and 0≤z<1), a lithium manganese cobalt composite oxide such as LixMnyCo1-yO2 (0<x≤1, and 0<y<1), a spinel type lithium manganese nickel composite oxide such as LixMn1-yNiyO4 (0<x≤1, 0<y<2, and 0<1-y<1), a lithium phosphorus oxide such as having an olivine structure such as LixFePO4 (0<x≤1), LixFe1-yMnyPO4 (0<x≤1, 0<y≤1), or LixCoPO4 (0<x≤1), and a fluorinated iron sulfate (for example, LixFeSO4F (0<x≤1)).

權(quán)利要求

1
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