Sand grain chemically plated metal pole plate and preparation method thereof

A metal plate, electroless plating technology, applied in battery electrodes, electrode carriers/current collectors, electrical components, etc., can solve the problems of high cost, limited number of cycles, zinc dendrites, etc., and achieve a radical cure for lead sulfate, electrical conductivity Good, good flexibility

CN105161726BInactive Publication Date: 2017-10-10陈尚发
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-10-10
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a sand electroless plating metal polar plate and a preparing method thereof. The polar plate comprises copper plated sand in a graininess shape, resourceful sand serves as the core of the polar plate, optimized sand grains serve as forming carriers, electroless copper plating is carried out on the surface of the sand after activation and sensitization to form the copper plated sand, the reacting dose participating in a storage battery is used as the criterion of the plating layer thickness, the copper plated sand is directly packaged or packaged after pretreatment through a packaging bag, a metal barrier and a packaging box to form the polar plate, and the copper plated sand grains accumulate to form a macroporosity space structure to be applied to the environments of a lead-acid storage battery, an alkaline storage battery and a dry battery as a current collector. The copper sand is made of the sand through electroless copper plating, the technology is simple, conductivity is high after copper plating, the sand is rich in resource, as the sand grains are different in size, people have many choices when using the sand grains for manufacturing the polar plate, the grain porosity is large, the pore number per unit area is larger than that of foamy copper, the plasticity is higher, the manufacturing cost is low, and the sand electroless plating metal polar plate can be widely used for the technical field of electrochemistry storage batteries.
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Description

technical field

[0001] The invention relates to the technical field of storage batteries, in particular to a sand grain chemically plated metal plate and a preparation method thereof. Background technique

[0002] Lead-acid batteries are currently the world's most mature technology, cheapest, stable performance, high voltage, large current, and the most abundant raw materials. However, lead-acid batteries have disadvantages, such as short life and limited number of cycles. The reason is: the lead grid of the positive plate cannot withstand the erosion of oxidation during charging and is broken, so it loses the function of supporting the active material and gathering current. After the lead sulfate is thickened, lead sulfate will be produced, forming a huge resistance, and the battery will not be able to charge and fail. This problem has not been effectively solved, and it is called lead sulfate. Since the zinc in the electrolyte needs to use the current collector as a depos...

Examples

Embodiment Construction

[0024] The sand electroless plated metal plate of the present invention and the preparation method thereof will be further described and elaborated below in conjunction with the examples.

[0025] The sand chemically plated metal plate of the present invention includes copper-plated sand, and the copper-plated sand is granular, and its core is composed of sand rich in raw material resources, or sand made from rocks, or sand made from ceramics or glass, which is preferably Sand particles are used as the forming carrier, and the surface of the sand is activated and sensitized and then chemically plated with copper. The thickness of the coating is based on the amount of reaction of the battery. The accumulation of copper sand particles constitutes a spatial structure with large porosity.

[0026] The preparation method of the sand chemically plated metal plate of the present invention comprises the following steps:

[0027] a) Activation and sensitization of sand raw materials ...