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Alkaline secondary battery plate and alkaline secondary battery

A secondary battery, alkaline technology, applied in the direction of alkaline battery electrodes, secondary batteries, battery electrodes, etc., can solve problems such as separator damage, short circuit, etc., and achieve the effect of reducing burrs

Active Publication Date: 2020-11-03
PANASONIC EV ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when burrs are generated at the corners due to punching, the burrs are likely to damage the separator or penetrate through it to cause a short circuit.

Method used

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  • Alkaline secondary battery plate and alkaline secondary battery
  • Alkaline secondary battery plate and alkaline secondary battery
  • Alkaline secondary battery plate and alkaline secondary battery

Examples

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Embodiment Construction

[0027] An embodiment of an electrode plate of an alkaline secondary battery and an alkaline secondary battery having the electrode plate will be described below. In this embodiment, the alkaline secondary battery will be described as a nickel-metal hydride secondary battery.

[0028] Such as figure 1 As shown, the nickel-metal hydride secondary battery 11 in this embodiment is a prismatic sealed battery and has a plurality of battery cells 12 connected in series. The nickel-metal hydride secondary battery 11 includes: an integrated battery container 13 capable of accommodating each battery cell 12 ; and a cover 14 that seals the opening of the integrated battery container 13 . The integrated battery container 13 and the cover 14 constitute a storage container.

[0029] The internal space of the integrated battery case 13 is divided into six spaces by partition walls (not shown). One battery unit 12 is housed in each of those spaces. Therefore, in the present embodiment, s...

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Abstract

The invention provides a pole plate of an alkaline secondary battery capable of reducing burrs generated on the pole plate and an alkaline secondary battery with the pole plate. A positive electrode plate (15) of an alkaline secondary battery is provided with a rectangular nickel substrate (40), and the nickel substrate (40) has open cells filled with a positive electrode active material. The nickel substrate (40) includes a lead part (15a) and a stamped part (44), the lead part (15a) is extended as a part compressed in the thickness direction, and can be connected to the current collector plate (21), and the stamped part ( 44) The tip part (45) on the side opposite to the lead part (15a) of the nickel substrate (40) is extended as a part compressed in the thickness direction, and the positive electrode active material is filled into the filling part (42c ), the filling portion (42c) is set so as to have a predetermined separation distance between at least one of the lead portion (15a) and the punching portion (44).

Description

technical field [0001] The present invention relates to a pole plate of an alkaline secondary battery and an alkaline secondary battery with the pole plate. Background technique [0002] Generally, nickel-metal hydride secondary batteries, which are secondary batteries with high energy density and excellent reliability, are widely used as power sources for mobile devices, portable devices, etc., and as power sources for electric vehicles or hybrid vehicles. A nickel-metal hydride secondary battery is composed of a positive electrode mainly composed of nickel hydroxide, a negative electrode mainly composed of a hydrogen-absorbing alloy, and an alkaline electrolyte. For example, an example of an alkaline secondary battery having such a structure is described in Patent Document 1. [0003] The alkaline secondary battery described in Patent Document 1 is a nickel-metal hydride secondary battery including: a positive electrode plate holding a positive electrode active material; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/34H01M4/24H01M4/32H01M4/64
CPCH01M4/242H01M4/32H01M4/64H01M10/345Y02E60/10Y02P70/50
Inventor 冈田秀辉
Owner PANASONIC EV ENERGY CO LTD
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