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Alkaline storage battery anode, method for producing alkaline storage battery anode, alkaline storage battery, method for producing alkaline storage battery, anode active material for alkaline storage battery, method for producing anode active material for alkaline storage battery

A positive active material and manufacturing method technology, applied in the direction of active material electrodes, alkaline storage battery electrodes, alkaline storage batteries, etc., can solve the problems of accelerated battery internal pressure rise, etc., and achieve the effect of low environmental dependence and excellent battery characteristics

Inactive Publication Date: 2013-12-25
PANASONIC EV ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the alkaline storage battery described in Patent Document 2, oxygen generated from the positive electrode accelerates the increase in internal pressure of the battery in the above-mentioned use environment such as a hot summer area or continuous operation for a long time.

Method used

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  • Alkaline storage battery anode, method for producing alkaline storage battery anode, alkaline storage battery, method for producing alkaline storage battery, anode active material for alkaline storage battery, method for producing anode active material for alkaline storage battery
  • Alkaline storage battery anode, method for producing alkaline storage battery anode, alkaline storage battery, method for producing alkaline storage battery, anode active material for alkaline storage battery, method for producing anode active material for alkaline storage battery
  • Alkaline storage battery anode, method for producing alkaline storage battery anode, alkaline storage battery, method for producing alkaline storage battery, anode active material for alkaline storage battery, method for producing anode active material for alkaline storage battery

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Embodiment Construction

[0036] Next, an alkaline storage battery including a positive electrode for an alkaline storage battery according to the first embodiment of the present invention will be described.

[0037] The alkaline storage battery is, for example, a nickel-metal hydride storage battery. A sealed nickel-metal hydride storage battery used as a power source of an electric vehicle or a hybrid vehicle is constructed such that, for example, 13 negative plates containing a hydrogen storage alloy and nickel hydroxide (Ni(OH) 2 )’s positive electrode plate is laminated with 12 sheets of the positive electrode plate interposed by a separator made of alkali-resistant resin non-woven fabric. in the slot.

[0038] Next, fabrication of this nickel-metal hydride storage battery will be described.

[0039] [Production of nickel hydroxide particles]

[0040] In the first embodiment, the nickel hydroxide contained in the positive electrode plate is a particle, and the preferred nickel hydroxide particl...

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Abstract

This alkaline storage battery anode is provided with: nickel hydroxide particles covered by a cobalt compound coating layer; a zinc compound; and an yttrium compound and / or an ytterbium compound. The zinc compound and the yttrium compound and / or ytterbium compound are blended at a blend ratio that is in accordance with the ratio of the capacitance characteristics of the alkaline storage battery and the output characteristics of the alkaline storage battery.

Description

technical field [0001] The present invention relates to positive electrodes for alkaline storage batteries. Background technique [0002] Nickel-metal hydride storage batteries (NiMH) among alkaline storage batteries (secondary batteries) have high energy density and excellent reliability, so they are proposed for use as power sources for portable electronic devices, electric vehicles, hybrid vehicles, etc. The nickel-metal hydride storage battery includes a positive electrode mainly composed of nickel hydroxide, a negative electrode mainly composed of a hydrogen-absorbing alloy, and an alkaline electrolyte solution containing potassium hydroxide or the like. [0003] Conventionally, there is known a positive electrode for a nickel metal hydride storage battery in which a paste containing nickel hydroxide as an active material is directly filled into pores of a highly porous foamed nickel porous substrate (foamed nickel substrate). Patent Document 1 describes an example of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/32H01M4/52H01M4/62H01M10/30
CPCH01M4/26H01M4/32H01M4/362H01M4/364H01M4/52H01M4/62Y02E60/10H01M4/366H01M10/30H01M2004/028
Inventor 工藤聪前原贤一武田幸大大川和宏竹原晓坂本弘之
Owner PANASONIC EV ENERGY CO LTD
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