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A kind of iron-nickel accumulator and preparation method thereof

An iron-nickel battery, three-dimensional technology, applied in nickel battery, alkaline battery manufacturing, alkaline battery and other directions, can solve the problems of poor electronic current collection effect of active materials, complex production process, affecting cycle performance, etc., to increase the package capacity and bonding strength, improve the process environment, improve the effect of electrical conductivity

Active Publication Date: 2019-07-05
高新峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of this method is complicated, the manufacturing cost is high, the metal dust pollution caused by the plate manufacturing process, and the steel belt has poor electronic current collection effect on the active material, resulting in poor capacity performance and low specific energy of the battery, only 18-20Wh / kg. Cycle performance, cycle no more than 2000 cycles

Method used

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  • A kind of iron-nickel accumulator and preparation method thereof
  • A kind of iron-nickel accumulator and preparation method thereof
  • A kind of iron-nickel accumulator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of iron-nickel storage battery, its preparation method comprises the steps:

[0038] S1. Send one end of the non-porous steel strip raw material into a perforation system for processing to prepare a three-dimensional strip. The three-dimensional strip includes a metal foil body and flanging holes on the body. The metal foil body is a steel strip The body, the flanging holes are perforated without blanking, and each flanging hole is arranged at an even interval, and the periphery of the flanging holes in adjacent or adjacent rows protrudes toward the two sides of the steel strip body respectively. The top of the protrusion is in the shape of a three-dimensional grid;

[0039]S2: The surface of the three-dimensional tape prepared in step S1 is nickel-plated and then enters the dipping system through the guide wheel for processing, so that the surface of the three-dimensional tape is evenly coated with the active material slurry, and then the three-dimensional tape ...

Embodiment 2

[0046] A kind of iron-nickel storage battery, its preparation method comprises the steps:

[0047] S1. Send one end of the non-porous steel strip raw material into a perforation system for processing to prepare a three-dimensional strip. The three-dimensional strip includes a metal foil body and flanging holes on the body. The metal foil body is a steel strip The body, the flanging holes are perforated without blanking, and each flanging hole is arranged at an even interval, and the periphery of the flanging holes in adjacent or adjacent rows protrudes toward the two sides of the steel strip body respectively. The top of the protrusion is in the shape of a three-dimensional grid;

[0048] S2: The surface of the three-dimensional tape prepared in step S1 is nickel-plated and then enters the dipping system through the guide wheel for processing, so that the surface of the three-dimensional tape is evenly coated with the active material slurry, and then the three-dimensional tape...

Embodiment 3

[0055] A kind of iron-nickel storage battery, its preparation method comprises the steps:

[0056] S1. Send one end of the non-porous steel strip raw material into a perforation system for processing to prepare a three-dimensional strip. The three-dimensional strip includes a metal foil body and flanging holes on the body. The metal foil body is a steel strip The body, the flanging holes are perforated without blanking, and each flanging hole is arranged at an even interval, and the periphery of the flanging holes in adjacent or adjacent rows protrudes toward the two sides of the steel strip body respectively. The top of the protrusion is in the shape of a three-dimensional grid;

[0057] S2: The surface of the three-dimensional tape prepared in step S1 is nickel-plated and then enters the dipping system through the guide wheel for processing, so that the surface of the three-dimensional tape is evenly coated with the active material slurry, and then the three-dimensional tape...

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Abstract

The invention provides a preparation method of an iron-nickel storage battery. The preparation method comprises the following steps: S1, preparing a three-dimensional band; S2, uniformly coating the surface of the prepared three-dimensional band with active substance slurry through an immersing system, and preparing the three-dimensional band into a wet polar plate through a tilted plate type slurry coating device above the immersing system, wherein the active substance slurry is prepared from an active material and an organic fiber; S3, respectively preparing a positive polar plate and a negative polar plate from the wet polar plate through drying, sheeting and slicing; S4, oppositely placing the positive polar plate and the negative polar plate, placing a diaphragm between the positive polar plate and the negative polar plate, thus forming an electrode assembly, putting the electrode assembly into a shell, and injecting electrolyte into the shell. The prepared iron-nickel storage battery shows characteristics of extremely high energy density and long cyclic life and is excellent in safety.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an iron-nickel storage battery and a preparation method thereof. Background technique [0002] The iron-nickel storage battery developed at the beginning of the 20th century has a wide range of electrode materials, low cost, green environmental protection, high theoretical specific capacity, high safety, long cycle life and working life, no damage to discharge, overcharge and overdischarge resistance, mechanical resistance The advantages of abuse and large monomer capacity have good prospects in the future new generation of energy storage and electric vehicle markets. [0003] The electrode manufacturing method of the traditional iron-nickel battery is a bag-making method. The powdery active material is wrapped in a flat bag folded from a perforated nickel-plated steel strip, and the positive and negative plates are made by stacking, pressing, welding and other processes. ; Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/28H01M10/30
CPCH01M10/0413H01M10/281H01M10/30Y02E60/10Y02P70/50
Inventor 高宁宁高新峰袁华胡高磊吴治国李浩
Owner 高新峰
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