A storage-resistant long-life Ni-MH battery

A nickel-metal hydride battery, long-life technology, used in nickel batteries, battery electrodes, alkaline batteries, etc., can solve the problems of reduced battery capacity, affecting the normal use of electronic and electrical products, etc., to reduce self-discharge, excellent and low self-discharge Dischargeable, cost-effective effect

Active Publication Date: 2019-01-29
惠州市伟江实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as we all know, when the battery is not in use, due to its self-discharge characteristics, the battery capacity will gradually decrease after being placed for a period of time, which will affect the normal use of electronic and electrical products.

Method used

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  • A storage-resistant long-life Ni-MH battery

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Effect test

Embodiment 1

[0022] In the positive electrode formulation of the nickel-metal hydride battery of the present invention, the cobalt-coated nickel hydroxide that accounts for 90% by weight of the positive electrode formulation is used to replace the traditional nickel hydroxide, and the negative electrode formulation uses AB that accounts for 82% by weight of the negative electrode formulation. 2 Type hydrogen storage alloy powder instead of traditional AB 5 Type hydrogen storage alloy powder, the weight ratio of positive electrode to negative electrode is 1:1.2, which can produce nickel-metal hydride batteries with low self-discharge, storage resistance and long life.

Embodiment 2

[0024] In the positive electrode formulation of the nickel-hydrogen battery of the present invention, the cobalt-coated nickel hydroxide that accounts for 93.5% by weight of the positive electrode formulation is used to replace the traditional nickel hydroxide, and the negative electrode formulation uses AB that accounts for 85% by weight of the negative electrode formulation. 2 Type hydrogen storage alloy powder instead of traditional AB 5 Type hydrogen storage alloy powder, the weight ratio of positive electrode to negative electrode is 1:1.3, which can produce nickel-metal hydride batteries with low self-discharge, storage resistance and long life.

Embodiment 3

[0026] In the positive electrode formulation of the nickel-metal hydride battery of the present invention, the cobalt-coated nickel hydroxide that accounts for 95% by weight of the positive electrode formulation is used to replace the traditional nickel hydroxide, and the negative electrode formulation uses AB that accounts for 83.65% by weight of the negative electrode formulation. 2 Type hydrogen storage alloy powder instead of traditional AB 5 Type hydrogen storage alloy powder, the weight ratio of positive electrode to negative electrode is 1:1.4, which can produce nickel-metal hydride batteries with low self-discharge, storage resistance and long life.

[0027] The comparison battery is a positive electrode formula composed of 95.5% nickel hydroxide, 3% cobalt oxide, 0.5% nickel powder, 1% ytterbium oxide and 83.65% AB 5 Type hydrogen storage alloy powder, 5.7% water, 3.35% sodium polyacrylate, 5.5% hydroxypropyl methylcellulose, 1% styrene-butadiene rubber, 0.8% carbon p...

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Abstract

The invention discloses a nickel-hydrogen battery with storage resistance and long service life. The cathode formula of the nickel-hydrogen battery comprises cobalt-coated nickel hydroxide, and the anode formula of the nickel-hydrogen battery comprises AB2-type alloy powder. The weight ratio of the cobalt-coated nickel hydroxide in the cathode formula is 90% to 95%, the weight ratio of the AB2-type alloy powder in the anode formula is 82% to 85%, and the weight ratio of the cathode to the anode is 1: 1.2 to 1: 1.4. Compared with a traditional battery, the novel battery has the characteristics of low self-discharge property, storage resistance and long service life.

Description

technical field [0001] The invention relates to a nickel-hydrogen battery, in particular to a storage-resistant and long-life nickel-hydrogen battery. Background technique [0002] With the improvement of people's living standards and the advent of the information age, electronic and electrical products have gradually become a necessity in people's lives and an indispensable part of modern people's life and work, especially the young people. With the improvement of quality requirements, they very much hope that their electronic and electrical products can be used anytime and anywhere as they like. As a result, batteries have become one of the necessary components for most electronic and electrical products. [0003] However, as we all know, when the battery is not in use, due to its self-discharge characteristics, the battery capacity will gradually decrease after being placed for a period of time, which will affect the normal use of electronic and electrical products. In r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/52H01M4/38H01M10/30
CPCH01M4/383H01M4/52H01M10/30Y02E60/10
Inventor 焦红江何龙海朱增良
Owner 惠州市伟江实业有限公司
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