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Batteries, Battery Packs and Vehicles

A battery pack and battery technology, applied in the direction of battery/battery traction, battery electrodes, large flat batteries/batteries, etc., can solve problems such as difficult to ensure safety

Active Publication Date: 2020-05-08
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, it is difficult to ensure adequate security

Method used

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  • Batteries, Battery Packs and Vehicles
  • Batteries, Battery Packs and Vehicles
  • Batteries, Battery Packs and Vehicles

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0027] According to one aspect of the first embodiment, a battery including one or more electrode stacks is provided. The electrode laminate includes an electrolyte layer, a first electrode layer, and a second electrode layer. The electrolyte layer contains electrolyte and carboxymethylcellulose sodium salt. The first electrode layer contains a first active material and carboxymethylcellulose ammonium salt, and is bonded to one surface of the electrolyte layer. The second electrode layer includes a second active material and a first binder soluble in an organic solvent, and is bonded to the other surface of the electrolyte layer.

[0028] According to another aspect of the first embodiment, a battery including one or more electrode stacks is provided. The electrode laminate includes an electrolyte layer, a first electrode layer, and a second electrode layer. The electrolyte layer contains electrolyte and carboxymethylcellulose ammonium salt. The first electrode layer inclu...

no. 2 Embodiment approach

[0193] According to the second embodiment, a battery pack can be provided. This battery pack includes the battery described in the first embodiment.

[0194] The battery pack according to the second embodiment may include one or more batteries (single cells) described above in the first embodiment. The plurality of batteries that can be included in the battery pack according to the second embodiment can be electrically connected in series, in parallel, or a combination of series and parallel. A plurality of batteries may be electrically connected to form a battery pack. The battery pack according to the second embodiment may include a plurality of assembled batteries.

[0195] The battery pack according to the second embodiment may further include a protection circuit. The protection circuit is a circuit that controls charging and discharging of the battery. Alternatively, a circuit included in a device using a battery pack as a power source (for example, an electronic dev...

no. 3 Embodiment approach

[0213] According to the third embodiment, a vehicle can be provided. Examples of the vehicles mentioned here include two- to four-wheeled hybrid electric vehicles that use a combination of an internal combustion engine and a battery-driven electric motor as a driving power source, and two- to four-wheeled electric vehicles that use only a battery-driven electric motor as a driving power source. Wheeled electric vehicles and power-assisted bicycles combined with human power.

[0214] For the driving force of vehicles such as automobiles, a power source with a wide range of rotation speed and torque is required according to the running conditions. In general, internal combustion engines are limited in terms of torque and rotational speed that exhibit ideal energy efficiency, so that energy efficiency decreases under other operating conditions. Hybrid vehicles have the following characteristics: by making the internal combustion engine work under optimal conditions to generate e...

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Abstract

According to the embodiments, a battery, a battery pack, and a vehicle are provided. The battery includes one or more electrode laminates. The electrode laminate includes an electrolyte layer, a first electrode layer, and a second electrode layer. The electrolyte layer contains electrolyte and carboxymethylcellulose sodium salt. The first electrode layer contains a first active material and carboxymethylcellulose ammonium salt, and is bonded to one surface of the electrolyte layer. The second electrode layer includes a second active material and a first binder soluble in an organic solvent, and is bonded to the surface of the electrolyte layer that is on the back side of the surface to which the first electrode layer is bonded.

Description

technical field [0001] Embodiments relate to batteries, battery packs, and vehicles. Background technique [0002] Lithium-ion non-aqueous electrolyte secondary batteries are widely used in various fields such as electric vehicles, power storage, and information equipment as high-energy-density batteries. Along with this, the demand from the market has further increased, and studies are being actively carried out. [0003] In particular, high energy density, that is, high discharge capacity per unit weight or per unit volume is required in order to use it as a power source for vehicles such as electric vehicles. [0004] On the other hand, the larger the discharge capacity per unit weight or per unit volume, the higher the demand for safety. As one of the countermeasures, an all-solid secondary battery is used. The all-solid secondary battery is a secondary battery that uses a solid electrolyte instead of a conventional nonaqueous electrolyte, that is, an organic electrol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M50/178H01M50/209H01M50/296H01M50/548H01M50/553
CPCH01M10/0418H01M10/0431H01M10/045H01M2220/20H01M50/553H01M50/178H01M50/296H01M50/548H01M50/209H01M4/13H01M4/621H01M4/622H01M10/052H01M2250/20H01M2300/0065B60L50/64H01M4/0404H01M4/0407H01M10/0525H01M10/0562H01M10/4257H01M2004/021H01M2004/027H01M2004/028H01M2300/0037H01M2300/0068Y02E60/10Y02T10/70Y02T90/40Y02E60/50Y02P70/50B60L50/66H01M4/661H01M10/0468H01M10/058H01M50/20H01M10/056H01M10/0567H01M10/0565H01M10/0564H01M4/043H01M4/0471H01M4/131H01M4/1391H01M4/366H01M4/485H01M4/505H01M4/525H01M4/587H01M4/623H01M4/625H01M10/0568H01M10/0569H01M10/0587H01M2010/4278
Inventor 岩崎拓哉高见则雄
Owner KK TOSHIBA