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All-solid-state battery mold

An all-solid-state battery and mold technology, applied in secondary batteries, secondary battery manufacturing, circuits, etc., can solve the problems of large size, weight, high cost, incompatibility with high temperature conditions, etc., and achieve a wide applicable temperature range and space utilization. High rate, small volume effect

Active Publication Date: 2018-02-27
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, commercial button battery molds (such as CR2032) rely on the elasticity of the shell to provide pressure, so the pressure is generally less than 10 MPa; some other battery molds (such as Chinese patent, application number CN201010604223.0; literature Nanotechnology, 2015, 26, 254001), due to the use of springs to generate pressure, according to the mechanical design manual, it is impossible to provide a pressure above 100 MPa; the pressure controllable battery assembly kit mold (Chinese patent, application number CN201620521610.0) can be controlled by using pressure The equipment exerts pressure on the upper and lower mold cores to achieve pressurization. However, the mold needs to be equipped with pressure-controllable equipment, and the pressure-controllable equipment (such as hydraulic press) has the following disadvantages at the same time or in part: (1) Large volume and weight , (2) high cost, (3) incompatible with high temperature conditions, which makes it impossible to realize batch and systematic all-solid-state battery testing and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] like figure 1 and figure 2 As shown, an all-solid-state battery mold, the mold includes a barrel-shaped internal thread aluminum alloy part 1, a barrel-shaped external thread aluminum alloy part 5, a rod-shaped aluminum alloy part 3 with external leads, and a polytetrafluoroethylene insulating gasket 2 And polytetrafluoroethylene insulating sleeve 4. Among them, 1.1 is the internal thread, 5.2 is the corresponding external thread, and 5.1 is the sealing ring. The other 6 is the positive electrode, electrolyte and negative electrode of the all-solid-state battery. The barrel-shaped internal thread aluminum alloy part 1 and the barrel-shaped external thread aluminum alloy part 5 are connected by threads, and the barrel-shaped external thread aluminum alloy part 5 is put into the rod-shaped aluminum alloy part 3 connected with the external lead wire. The threaded aluminum alloy part 5 and the rod-shaped aluminum alloy part 3 connected to the external lead wire are insu...

Embodiment 2

[0022] like figure 1 and figure 2 As shown, an all-solid-state battery mold, the mold includes a barrel-shaped internal thread aluminum alloy part 1, a barrel-shaped external thread aluminum alloy part 5, a rod-shaped aluminum alloy part 3 with external leads, nylon insulating gasket 2 and nylon insulating Casing 4. Among them, 1.1 is the internal thread, 5.2 is the corresponding external thread, and 5.1 is the sealing ring. Among them, 6 are the positive electrode, electrolyte and negative electrode of the all-solid-state battery. The barrel-shaped internal thread aluminum alloy part 1 and the barrel-shaped external thread aluminum alloy part 5 are connected by threads, and the barrel-shaped external thread aluminum alloy part 5 is put into the rod-shaped aluminum alloy part 3 connected with the external lead wire. The threaded aluminum alloy part 5 is insulated from the rod-shaped aluminum alloy part 3 connected to the external lead wire by nylon insulating sleeve 4, and...

Embodiment 3

[0025] like figure 1 and figure 2 As shown, an all-solid-state battery mold, the mold includes a barrel-shaped internal thread stainless steel part 1, a barrel-shaped external thread stainless steel part 5, a rod-shaped stainless steel part 3 with external leads, nylon insulating gasket 2 and nylon insulating sleeve 4 . Among them, 1.1 is the internal thread, 5.2 is the corresponding external thread, and 5.1 is the sealing ring. Among them, 6 are the positive electrode, electrolyte and negative electrode of the all-solid-state battery. The barrel-shaped internal thread stainless steel part 1 and the barrel-shaped external thread stainless steel part 5 are connected by threads, and the barrel-shaped external thread stainless steel part 5 is put into the rod-shaped stainless steel part 3 with external lead wires, and the barrel-shaped external thread stainless steel part 5 It is insulated with the rod-shaped stainless steel part 3 of the external lead wire with a nylon insul...

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Abstract

The invention relates to an all-solid-state battery mold. A pressurizing component is used for providing pressure and comprises a hollow internal thread metal piece and a hollow external thread metalpiece matched with the hollow internal thread metal piece through threads; a pressure conducting component is arranged in the pressurizing component and used for conducting the pressure provided by the pressurizing component to an electrode and an electrolyte arranged in an all-solid-state battery; the pressure conducting component comprises a rod-shaped metal piece capable of externally connecting leads; an insulating component is used for preventing short circuit of the all-solid-state battery and comprises an insulating gasket and an insulating sleeve, wherein the insulating gasket is arranged between the rod-shaped metal piece for externally connecting leads and the hollow internal thread metal piece; and the insulating sleeve is arranged between the rod-shaped metal piece for externally connecting leads and the hollow external thread metal piece. In addition to the necessary sealing property and internal insulating property of a battery mold, the all-solid-state battery mold provided by the invention can provide a pressure of the lowest 0MPa and the highest 200MPa without matching equipment, has a high space utilization rate and is suitable for tests and use temperatures of the lowest -90 DEG C and the highest 250 DEG C.

Description

technical field [0001] The invention relates to a chemical battery mold, in particular to an all-solid-state battery mold, belonging to the technical field of all-solid-state battery molds. Background technique [0002] The all-solid-state battery is composed of a pure solid positive electrode, negative electrode and electrolyte according to a certain structure. Because when the all-solid-state battery is working, the positive electrode and the negative electrode will carry out solid-phase material transport through the electrolyte, so it is necessary to apply high pressure to the positive electrode, negative electrode, and electrolyte to promote material transport, thereby improving the electrochemical performance of the all-solid-state battery. For example, literature (Applied Physics A, 2016, 122, 251) reports that all-solid-state batteries using coordination hydrides as electrolytes require pressures above 100 MPa to exhibit good electrochemical performance. [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04
CPCH01M10/0481Y02E60/10Y02P70/50
Inventor 郑时有庞越鹏朱梦飞路富强杨俊和
Owner UNIV OF SHANGHAI FOR SCI & TECH