Draw-dried cadmium electrode for in-line package of cell

Abstract

The draw-rod cadmium electrode for direct seal of cell is formed from carrier and active material coated on the carrier, and the composition of said active material includes (wt%) 60%-75% of cadmium oxide, 4%-10% of nickel powder, 5%-15% of spongy cadmium, 3%-10% of zinc powder, 1%-3% of polyvinyl alcohol, 4%-10% of metal cadmium powder, 1%-5% of transformer oil, 0.5%-2% of disodium hydrogen phosphate and 0.1%-0.6% of carboxymethylcellulose sodium. Said invention can make cell production process simple, can raise its yield and can greatly reduce its production cost.

Description

technical field [0001] The invention relates to a negative electrode of a cadmium-nickel alkaline storage battery coated with an active material on a carrier, in particular to a dry separator electrode used for battery direct sealing, which is an improvement of the prior art. Background technique [0002] In recent years, the competition in the nickel-cadmium battery market has reached a feverish level. The focus of the competition is price and performance. It is the goal of various manufacturers to improve the performance level of batteries while reducing manufacturing costs. When the dry (or bonded) separator produced by the prior art is used to manufacture nickel-cadmium batteries, the battery production process must adopt a rich liquid submerged chemical formation, resulting in a very complicated battery manufacturing process and a waste of a lot of manpower. , material resources, a large amount of waste liquid is produced after submerged formation, and it also pollutes ...

AI Technical Summary

Problems solved by technology

When the dry (or bonded) separator produced by the prior art is used to manufacture nickel-cadmium batteries, the battery production process must adopt a rich liquid submerged chemical formation, resulting in a very complicated battery manufacturing process and a waste of a lot of manpower. , material resources, a large amount of waste liquid is produced after submerged formation, and it also pollutes the environment. Once the pass rate of battery manufacturing is low, the reliability is poor, resulting in high battery manufacturing costs and reducing the market competitiveness of products.