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Nickel-Metal Hydride Battery

一种蓄电池、氢化物的技术，应用在镍蓄电池、碱性蓄电池、碱性蓄电池制造等方向，能够解决蓄电池容量减少、使用寿命减少等问题，达到避免维护费用、使用寿命提高、减轻重量的效果

Active Publication Date: 2015-12-16
HOPPECKE BATTERY SYST SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overheating can lead to a reduction in the charge, i.e. the capacity of the nickel-metal hydride battery, resulting in a reduced lifespan

Method used

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  • Nickel-Metal Hydride Battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] figure 1 It is a schematic cross-sectional view of the metal hydride storage battery 1 . The metal hydride accumulator 1 has a plastic material housing 2 which can be tightly closed by a cover 3 . The pressure relief valve 4 is inserted tightly into the opening in the cover 3 and carries a flashback protection 20 inside.

[0048] A nickel hydroxide positive electrode 5 and a metal hydride negative electrode 6 are arranged inside the battery case 2 . The electrodes are mounted in suspension, for which purpose the battery housing 2 is provided with corresponding strip-shaped carriers 12 . Electrodes 5 and 6 are inserted into the pocket separator. The positive electrode 5 is arranged in the separator pocket 14 and the negative electrode 6 is arranged in the separator pocket 15 . A polyolefin nonwoven material was used as the material for the separator pocket 14 . The separator pocket 15 of the negative electrode was formed of polyamide separator nonwoven fibers.

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Abstract

The present invention relates to a nickel-metal hydride accumulator for industrial application, comprising: a nickel hydroxide positive electrode, a metal hydride negative electrode separated from the nickel hydroxide positive electrode, and an alkaline electrolyte surrounding the electrode. In order to propose improved nickel-metal hydride accumulators compared to the prior art and in particular insensitive to temperature influences, the invention proposes a nickel-metal hydride accumulator with a thermal device (19) which means (19) increasing the specific heat capacity of said accumulator and formed by an additional electrolyte volume (8), wherein said accumulator comprises a casing (2) of plastic material and a pressure relief valve (4), said casing (2) containing The electrodes (5, 6) and the electrolyte solution (9).

Description

technical field [0001] The present invention relates to a nickel-metal hydride accumulator for industrial use, comprising a nickel hydroxide positive electrode, a metal hydride negative electrode separated therefrom, and an alkaline electrolyte surrounding said electrode. Background technique [0002] Nickel-metal hydride accumulators (NiMH accumulators for short) are known per se in the prior art, so that a detailed description of specific lists or prior art documents is not required at this point. [0003] Nickel-metal hydride accumulators have a positive electrode composed of nickel hydroxide. The negative electrode is formed of a metal hydride. An alkaline solution (for example, caustic potash solution) is used as the electrolytic solution. [0004] Nickel-metal hydride batteries have proven to be beneficial in everyday use. Compared with nickel-cadmium batteries, nickel-metal hydride batteries provide nearly twice the energy density at the same voltage. In addition,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/30H01M10/28H01M10/613H01M10/625H01M50/121H01M50/417H01M50/423
CPCH01M4/668H01M4/72H01M10/345H01M10/523H01M10/654H01M10/613H01M10/659Y02E60/10H01M50/383H01M50/394H01M50/44Y02P70/50H01M50/417H01M50/121H01M50/423
Inventor 德特勒夫·欧姆甘特·沙德利希鲍里斯·科内恩斯尼特金拉伊内·马戈尔夫卡特娅·施梅尔特
Owner HOPPECKE BATTERY SYST SHANGHAI CO LTD