Easy-welding electrode connection piece blank treatment process

Abstract

The invention discloses an easy-welding electrode connection piece blank treatment process. The process comprises the steps of alkalization treatment, wherein NaHO with the purity being 99 to 99.6% and water are mixed according to the proportion of 1:10 to form a NaHO solution, the material is cleaned, and during cleaning, the temperature is controlled between 50 and 55 DEG C; primary material cleaning treatment, wherein purified water is used for cleaning the material at the normal temperature; acidification treatment, wherein nitric acid with the purity being 99.2 to 99.7% and water are mixed according to the proportion of 1:9 to form a HN03 solution, and the solution is used for cleaning; secondary material cleaning treatment; passivation treatment, wherein chromium-free environment-friendly Alodine and water are mixed according to the proportion of 1.5:10 to form an Alodine solution to clean the material; third-time material cleaning treatment; and oven treatment, wherein an oven is used for drying the water beads on the surface of the material, and the drying temperature is controlled to range from 90 to 110 DEG C. An oil layer on an electrode connection piece blank can be thoroughly removed, the electrode connection piece obtained after treatment is easy to weld, meanwhile, welding is firm, the battery set assembling cost is greatly reduced, the battery set safety is improved, and the failure rate of the battery set is reduced.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of a battery electrode connecting sheet processing method, in particular to the technical field of an easy-to-weld electrode connecting sheet blank processing technology. [0003] 【Background technique】 [0004] People are becoming more and more dependent on electronic products. Electronic products or electric vehicles will use battery packs. The battery pack is composed of many independent batteries that are welded and connected by electrode connectors. The electrode connectors need to have high temperature resistance and resistance. Small and other characteristics, in the production process of the electrode connecting sheet, a large amount of pressing oil will be used in the rolling and pressing process of the raw material strip, and the oil molecules will penetrate into the surface of the nickel material when it is continuously pressed from thick to thin. The products produced by the manufacturer a...

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Problems solved by technology

[0004] People are becoming more and more dependent on electronic products. Electronic products or electric vehicles will use battery packs. The battery pack is composed of many independent batteries that are welded and connected by electrode connectors. The electrode connectors need to have high temperature resistance and resistance. Small and other characteristics, in the production process of the electrode connecting sheet, a large amount of pressing oil will be used in the rolling and pressing process of the raw material strip, and the oil molecules will penetrate into the surface of the nickel material when it is continuously pressed from thick to thin. The products produced by the manufacturer are often Because the oil stain is difficult to clean, it affects the welding effect. At present, the metal material for welding is mainly plated on the electrode connecting piece, but the coating material currently used is easy to oxidize, and the resistance of the electrode connecting piece will increase after oxidation. Based on this phenomenon, our company After years of exploration, a set of mature and effective cleaning scheme has been developed, which completely solves the problem that the welding of nickel sheet products is difficult to clean due to the difficulty of cleaning the nickel strip.

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