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Manufacturing method of zinc nickel primary battery capable of high temperature storage

A battery, zinc-nickel technology, used in primary batteries, battery electrodes, circuits, etc., can solve problems such as large self-discharge and poor storage performance

Inactive Publication Date: 2006-03-29
江苏省新动力电池及其材料工程技术研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The proposed containing MnO 2 The zinc-nickel primary battery with NiOOH as the positive electrode active material has superior discharge performance under heavy load, but its storage performance is poor, especially at high temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] MnO 2 , NiOOH (particle size 30-40μm) and graphite are mixed in a mass ratio of 25:75:10 and added equivalent to MnO 2 and 3% MgO of the total mass of NiOOH, and 5% of the total mass of the above substances with a concentration of 38% KOH electrolyte are mixed uniformly in a mixer, granulated and ringed, and 34% KOH is used as the electrolyte for LR6 Zinc-nickel primary battery A is made of the size. Store for 3 weeks (21 days) at 60°C and 90% RH, take it out and store it in an environment of 20±2°C for 24 hours, discharge it to 1.1V with a constant current of 500mA in this environment, and measure the discharge duration ( in minutes).

Embodiment 2

[0023] In the same manner as in Example 1, with Mg(OH) 2 Instead of MgO, battery B was assembled, and the continuous discharge time of each battery was measured.

Embodiment 3

[0025] In the same manner as in Example 1, ZnO+MgO (ZnO:MgO=1:1) was used instead of MgO to assemble a battery C, and the continuous discharge time of each battery was measured.

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Abstract

The invention provides a Zn-Ni primary battery having excellent heavy-load discharging property even if stored for 3 weeks on the conditions of 60 deg. c and humidity of 90% RH. The invention contains anode, cathode, diaphragm and basic electrolyte, where the anode comprises MnO2 and NiOOH as active substances and at least one of the oxygen-containing compounds of Mg, Zn, Ti, Sc, Ce and Y and the cathode comprises Zn as active substance.

Description

【Technical field】 [0001] The present invention involves the use of MnO 2 and NiOOH as the zinc-nickel primary battery of the positive electrode active material. 【Background technique】 [0002] The zinc-nickel primary battery has such a structure that the ring-shaped positive electrode is tightly packed into the positive electrode casing, the diaphragm is assembled into a tube and placed in the middle of the positive electrode ring, and the negative electrode is packed into the diaphragm tube. [0003] Appliances using these batteries have increased loads, and therefore zinc-nickel primary batteries with excellent high-load discharge characteristics are required. [0004] One technique proposed is to incorporate MnO 2 It is mixed with NiOOH as the positive active material and assembled into a zinc-nickel primary battery to provide a battery with excellent large-load discharge characteristics. [0005] The proposed containing MnO 2 The zinc-nickel primary battery with NiOO...

Claims

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Application Information

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IPC IPC(8): H01M4/50H01M4/52H01M4/38H01M4/62H01M6/00
CPCY02E60/12
Inventor 唐琛明王兴威沙永香高效岳
Owner 江苏省新动力电池及其材料工程技术研究中心有限公司
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