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Die for preparing integrated electrode for full-vanadium liquid flow energy storage battery and application thereof

An energy storage battery, all-vanadium liquid flow technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of inaccurate positioning, low bonding strength, and poor sealing.

Active Publication Date: 2013-01-16
DALIAN RONGKE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature is too high, the melt fluidity of the composite material is good, and more electrode material fibers are covered by the molten composite material during the hot pressing process, and the bonding strength is high. The deformation of the bipolar plate caused a series of problems during the assembly process of the all-vanadium liquid flow energy storage stack, such as poor sealing, inaccurate positioning, etc.
If the temperature is low, the composite material only softens or melts insufficiently, resulting in a low bonding strength between it and the electrode material

Method used

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  • Die for preparing integrated electrode for full-vanadium liquid flow energy storage battery and application thereof
  • Die for preparing integrated electrode for full-vanadium liquid flow energy storage battery and application thereof
  • Die for preparing integrated electrode for full-vanadium liquid flow energy storage battery and application thereof

Examples

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Effect test

Embodiment 1

[0044] An all-vanadium redox flow energy storage battery integrated electrode preparation mold, including two rectangular mold frames 2 with the same size and structure. The mold frame 2 is a rectangular metal flat plate. A hole is opened through the metal plate, and the groove sides of the two mold frames are buckled relative to each other to form an all-vanadium redox flow energy storage battery integrated electrode preparation mold. The electrode material (thickness, density) and polyethylene resin-based carbon-plastic composite bipolar plate (thickness, length, width) according to the following Figure 4 Assembled in the manner shown, and then placed the assembled mold on a heat press for heating and pressurization. After the temperature rose to 190°C, the temperature was maintained for 15 minutes. After cooling to normal temperature, the mold is disassembled and demolded.

Embodiment 2

[0046] An all-vanadium redox flow energy storage battery integrated electrode preparation mold, including two rectangular mold frames 2 with the same size and structure. The mold frame 2 is a rectangular metal flat plate. There are holes through the metal plate, and the groove sides of the two mold frames are relatively fastened to form an all-vanadium redox flow energy storage battery integrated electrode preparation mold; at the four corners of the metal plate as the mold frame, respectively Bolt holes 4 are provided.

[0047] Cover plates 1 are arranged on the outer sides of the two mold frames that are relatively fastened respectively. The cover plates 1 are metal flat plates whose size and shape are the same as those of the mold frames 2. Four bolt holes 4 are arranged at corresponding positions of the bolt holes, and the cover plate and the mold frame are connected and fixed through bolts or screws inserted in the bolt holes 4 .

[0048] Two corresponding positioning ho...

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Abstract

The invention belongs to the field of full-vanadium liquid flow energy storage batteries, particularly relates to a die for preparing an integrated electrode for a full-vanadium liquid flow energy storage battery and application thereof and provides the die for preparing the integrated electrode. The die comprises two die frames with the same shape, size and structure, wherein the die frames are metal flat plates; a groove is arranged on the surface of one side of each plate; holes penetrating through the metal plates are arranged in the middles of the grooves; and groove sides of the two dieframes are oppositely buckled to form the die for preparing the integrated electrode for the full-vanadium liquid flow energy storage battery. The integrated electrode for the full-vanadium liquid flow energy storage battery, which has lower surface resistance, higher combined strength and no deformation, can be prepared by placing an electrode material and a bipolar plate material into the die and carrying out heating, temperature rise, heat preservation, cooling and die stripping.

Description

technical field [0001] The invention belongs to the field of all-vanadium flow energy storage batteries, and in particular relates to a mold for preparing an integrated electrode of an all-vanadium flow energy storage battery and its application. Background technique [0002] All-vanadium redox flow energy storage battery is considered to be one of the preferred technologies for large-scale energy storage because of its high energy conversion efficiency, independent power and capacity, flexible design, normal temperature operation, and environmental friendliness. Electrode materials, bipolar plates, and ion exchange membranes are the core key materials of all-vanadium redox flow energy storage batteries, which have a crucial impact on the performance of all-vanadium redox flow energy storage batteries. Normally, there is a certain compression force between the electrode material and the bipolar plate in the all-vanadium redox flow energy storage battery module to reduce the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88B29C51/30B29C51/12
CPCY02E60/50
Inventor 张华民刘宗浩井然
Owner DALIAN RONGKE POWER
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