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Solid-state battery manufacturing method and solid state battery

A manufacturing method, solid battery technology, applied to batteries with solid electrolytes, secondary battery manufacturing, small flat batteries/batteries, etc., to achieve high reliability, high degree of freedom in shape, and high degree of freedom

Active Publication Date: 2013-05-22
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, lithium-ion batteries, which are currently mainstream, use flammable organic solvents as electrolytes, so in addition to liquid leakage, there are no shortage of safety measures such as short-circuiting and overcharging.

Method used

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  • Solid-state battery manufacturing method and solid state battery
  • Solid-state battery manufacturing method and solid state battery
  • Solid-state battery manufacturing method and solid state battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] On the surface of aluminum foil (10mm square) by hot-melt printing Figure 5 A polyetheretherketone coating (with a heat-resistant insulating member placed) was formed in the shape shown (a 10 mm square external contact, a 16 mm square internal contact pattern, and a width of 3 mm. Thickness 50 µm).

[0117] Next, LiNiO was coated by electrostatic screen printing on the inside of the heat-resistant insulating member (10 mm square part) on the above-mentioned aluminum foil. 2 and Li 2 S-P 2 S 5 Mixed powder of crystallized glass (LiNiO 2 : Li 2 S-P 2 S 5 crystallized glass=70:30% by volume), a positive electrode material powder layer was formed. At this time, the thickness of the positive electrode material powder layer became 50 μm after the subsequent heating and compression process.

[0118] Next, the aluminum foil obtained by disposing the heat-resistant insulating member and forming the positive electrode material powder layer was pressed at 2 tons / cm with a...

Embodiment 2

[0127] On the surface of aluminum foil (10mm square) by hot-melt printing Figure 5 A polyetheretherketone coating (a heat-resistant insulating member was placed) was formed in the shape shown (a 10 mm square external contact, a 16 mm square internal contact pattern, and a width of 3 mm. Thickness 50 μm).

[0128] Next, LiNiO was coated by electrostatic screen printing on the inside of the heat-resistant insulating member (10 mm square part) on the above-mentioned aluminum foil. 2 and Li 2 S-P 2 S 5 Mixed powder of crystallized glass (LiNiO 2 : Li 2 S-P 2 S 5 crystallized glass=70:30% by volume), a positive electrode material powder layer was formed. At this time, the thickness of the positive electrode material powder layer became 50 μm after the subsequent heating and compression process.

[0129] On the other hand, on the surface of the copper foil (10mm square) by hot-melt printing to Figure 5 A polyetheretherketone coating (a heat-resistant insulating member was...

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Abstract

A method for producing a solid-state cell which makes it possible to produce a highly reliable solid-state cell that suppresses a decrease in the thickness of the solid electrolyte layer and a short circuit between the positive and negative electrodes, and which is highly flexible in the size and shape of the solid electrolyte layer and electrodes. The method comprising: a structure preparing step for preparing a first structure, a second structure, or a third structure, a solid electrolyte material powder layer, and a positive electrode material powder layer are stacked, in this sequence; an insulating member disposing step for disposing a heat-resistant insulating member which is in contact with an outer periphery of the structure in the stacking direction of the structure and surrounds the outer periphery; and a heat-compressing step for heat-compressing the structure and heat-resistant insulating member, in the stacking direction of the structure.

Description

technical field [0001] The invention relates to a manufacturing method of a solid battery and the solid battery. Background technique [0002] In recent years, with the rapid spread of information-related equipment such as personal computers, video recorders, and mobile phones, and communication equipment, etc., attention has been paid to the development of batteries used as their power sources. In addition, in the automotive industry, the development of high-output and high-capacity batteries for electric vehicles and / or hybrid vehicles is also underway. Among various secondary batteries, lithium batteries and lithium ion batteries are attracting attention because of their high energy density and high output. [0003] However, lithium-ion batteries that are currently mainstream use flammable organic solvents as electrolytes, and therefore there are no shortage of safety measures including short-circuiting, overcharging, and the like in addition to liquid leakage. Therefor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M6/18H01M10/38H01M10/0562H01M10/0585
CPCH01M6/18H01M10/0562H01M10/0436Y02E60/122Y02T10/7011H01M6/188H01M10/0565H01M10/052H01M10/38Y10T29/49108Y02E60/10Y02P70/50Y02T10/70
Inventor 川岡广和角博康
Owner TOYOTA JIDOSHA KK