Multipole type metal nickel hydride sealing alkaline secondary battery

A secondary battery, bipolar technology, applied in the direction of alkaline storage battery, airtight storage battery, battery pack parts, etc., can solve the problems of heavy battery pack, increased internal resistance of battery pack, high heat release, etc., to achieve High energy density per unit volume, high discharge median voltage, and good cycle stability

Inactive Publication Date: 2006-06-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the series battery pack has the following disadvantages that cannot be ignored: First, each single cell in the battery pack has materials such as shells and tabs, which makes the battery pack heavy and has low energy density per unit weight; secondly, the shell, tabs, and sealing materials Repeated contact also causes the internal resistance of the battery pack to increase, the overall charging polarization is serious, and the heat release is high.
In addition, if one of the cells in the battery pack fails, it will affect the use of the entire battery pack

Method used

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  • Multipole type metal nickel hydride sealing alkaline secondary battery
  • Multipole type metal nickel hydride sealing alkaline secondary battery
  • Multipole type metal nickel hydride sealing alkaline secondary battery

Examples

Experimental program
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Embodiment Construction

[0019] refer to figure 1 , a bipolar metal hydride nickel sealed alkaline secondary battery, including a case 1, in which a first negative electrode 2, a first separator paper 3, a bipolar single electrode 4, a second Separator paper 9, first positive electrode 5. The first negative electrode 2 and the first positive electrode 5 have lead wires 7 drawn out from lead holes reserved in the case. The housing is sealed with a sealing ring 6 . Wherein the bipolar single electrode 4 (such as figure 2 As shown) the second negative electrode 10, the film 12 and the second positive electrode 11 are stacked in order from top to bottom, and the second negative electrode 10 and the second positive electrode 11 are welded and conducted with nickel strip 8 at the edge. The separator paper is made of polypropylene separator paper. Film can adopt common plastic film.

[0020] image 3 Shown is a metal hydride nickel sealed alkaline secondary battery with multiple bipolar single electro...

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Abstract

This invention discloses a complex pole metallic hydride Ni sealed alkali secondary battery including a shell with a first negative pole, first membrane paper, a complex pole monomer electrode, second membrane paper and a first positive pole stacked from the bottom to the top, in which, the first negative and the second positive poles are led from leading holes obligated in the shell, the shell is sealed by a seal loop, the complex pole is stacked by a second negative pole, a film and a second positive from the top to the bottom and the second negative pole and the second positive pole are conducted by a welded Ni strip.

Description

technical field [0001] The invention relates to a bipolar metal hydride nickel sealed alkaline secondary battery. Background technique [0002] Ni-MH batteries are currently on the trend of replacing Ni-Cd batteries in an all-round way. Compared with nickel-cadmium batteries, it has similar output voltage, high energy density, no memory effect, especially no heavy metal pollution. However, compared with lithium-ion batteries, another secondary battery widely used at present, it has the disadvantage of low voltage. For example, most of the currently widely used mobile phones use lithium-ion batteries with an output voltage of 3.6V; a few use nickel-metal hydride batteries, which require three nickel-hydrogen batteries to be connected in series. Series connection is currently the only way for Ni-MH batteries to obtain higher voltage. However, the series battery pack has the following disadvantages that cannot be ignored: First, each single cell in the battery pack has mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/24H01M10/34H01M50/417H01M50/46
CPCY02E60/10
Inventor 涂江平吴建波张文魁韩太安黄辉
Owner ZHEJIANG UNIV
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