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

專利號(hào)
US10868331B2
公開日期
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
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

The battery pack according to the third embodiment may further include a protective circuit. The protective circuit has a function to control charging and discharging of the secondary battery. Alternatively, a circuit included in equipment where the battery pack serves as a power source (for example, electronic devices, vehicles, and the like) may be used as the protective circuit for the battery pack.

Moreover, the battery pack according to the third embodiment may further comprise an external power distribution terminal. The external power distribution terminal is configured to externally output current from the secondary battery, and to input external current into the secondary battery. In other words, when the battery pack is used as a power source, the current is provided out via the external power distribution terminal. When the battery pack is charged, the charging current (including regenerative energy of motive force of vehicles such as automobiles) is provided to the battery pack via the external power distribution terminal.

Next, an example of a battery pack according to the third embodiment will be described with reference to the drawings.

FIG. 8 is an exploded perspective view schematically showing an example of the battery pack according to the third embodiment. FIG. 9 is a block diagram showing an example of an electric circuit of the battery pack shown in FIG. 8.

A battery pack 300 shown in FIGS. 8 and 9 includes a housing container 31, a lid 32, protective sheets 33, a battery module 200, a printed wiring board 34, wires 35, and an insulating plate (not shown).

權(quán)利要求

1
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