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A kind of preparation method of nickel base alkaline secondary battery negative plate

A secondary battery and negative plate technology, applied in the direction of alkaline battery electrodes, etc., can solve the problems of battery service life attenuation, battery negative electrode electrochemical corrosion, etc., to achieve improved discharge performance, increased battery capacity, and stronger corrosion resistance Effect

Active Publication Date: 2016-11-23
蚌埠中知知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the interior of the nickel-based battery is in an alkaline environment, the charge-discharge cycle of the battery will cause electrochemical corrosion to the negative electrode of the battery, thereby further reducing the service life of the battery.

Method used

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  • A kind of preparation method of nickel base alkaline secondary battery negative plate
  • A kind of preparation method of nickel base alkaline secondary battery negative plate
  • A kind of preparation method of nickel base alkaline secondary battery negative plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare the negative active material

[0018] By mass percentage:

[0019]

[0020] Preparation of negative electrode slurry

[0021] The above ZnO, Zn, CaO, Bi 2 o 3 、In(OH) 2 Grinding into powder and mixing evenly, adding the above-mentioned binder and water, stirring thoroughly to obtain negative electrode slurry.

[0022] coating

[0023] Apply the above slurry on the nickel foam sheet and press it to obtain a disc.

[0024] surface treatment to obtain the negative plate

[0025] The disc is then placed in a current density between 8mA / cm 2 Electroplating in the electroplating tank for 6h, the electroplating tank contains NiSO with a concentration of 9g / L 4 ·6H 2 O and Na 3 C 6 h 3 o 7 ·5H 2 O, a dense sulfide layer will be formed on the surface of the plated disc; then washed with deionized water and dried, and finally made into a negative electrode sheet.

[0026] The manufactured nickel-based alkaline secondary battery negative pole piece, the n...

Embodiment 2

[0028] Prepare the negative active material

[0029] By mass percentage:

[0030]

[0031]

[0032] Preparation of negative electrode slurry

[0033] The above ZnO, Zn, CaO, Bi 2 o 3 、In(OH) 2 Grinding into powder and mixing evenly, adding the above-mentioned binder and water, stirring thoroughly to obtain negative electrode slurry.

[0034] coating

[0035] Apply the above slurry on the nickel foam sheet and press it to obtain a disc.

[0036] surface treatment to obtain the negative plate

[0037] Then put the disc into the current density between 10mA / cm 2 Electroplating in the electroplating tank for 6h, the electroplating tank contains NiSO with a concentration of 12g / L 4 ·6H 2 O and Na 3 C 6 h 3 o 7 ·5H 2 O, a dense sulfide layer will be formed on the surface of the plated disc; then washed with deionized water and dried, and finally made into a negative electrode sheet.

[0038] The manufactured nickel-based alkaline secondary battery negative pole ...

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Abstract

The invention discloses a preparation method for a negative pole of the nickel-based alkaline secondary battery. The preparation method comprises the following steps: (1) preparing active materials of a positive electrode based on the mixture ratio, including ZnO, Zn, CaO, Bi2O3, In (OH) 2, polyving akohol adhesive and the balance of water; (2) grinding the ZnO, Zn, CaO, Bi2O3 and In (OH) 2 into powder, and uniformly mixing, and then adding the adhesive and water to fully agitate so as to obtain the size of the negative electrode; (3) coating the size on a foam nickel plate, and preforming to obtain a circular plate; and (4) electroplating the circular plate in an electroplating groove in which NiSO4.6H2O and Na3C6H3O7.5H2O are contained, wherein a dense sulfide layer is formed on the surface of the circular plate after being electroplated; and then washing via deionized water, and drying to obtain the negative plate. The nickel-based alkaline secondary battery with the negative plate prepared by the method provided by the invention has the advantages of good effect of discharging, high corrosion resistance and long service life.

Description

technical field [0001] The invention relates to a secondary battery negative electrode sheet and a preparation method thereof, in particular to a nickel-based alkaline secondary battery negative electrode sheet and a preparation method thereof. Background technique [0002] At present, due to the increasingly severe environmental protection situation, governments of various countries are forced to issue increasingly stringent environmental protection regulations, while the high international oil price and the prosperity of the Internet and electronic products have brought new rapid growth to the battery market, such as hybrid vehicles, electric vehicles Automobiles, rechargeable energy storage systems, uninterruptible power systems for data centers, and more, as hybrid electric vehicles (HEV), pluggable hybrid electric vehicles (PHEV), and pure electric vehicles (EV) prosper, There is an urgent need in the market for a battery product that can meet the requirements of high p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/26H01M4/24
CPCY02E60/10
Inventor 姜波
Owner 蚌埠中知知识产权运营有限公司