Blue Sea Blackstone Breaks Traditional Thinking Binder Products in Attempting to Match with Silicon Carbon Anode

As a focus on new materials, new energy technology research and development production enterprise, black stone Beijing blue ocean technology co., LTD. (hereinafter referred to as the "blue ocean black stone") with independent research and development of water-based adhesive in lithium electric field, is now actively take silicon carbon negative commanding heights.

According to the country Power battery The technology roadmap of planning, in 2020Lithium ion batteries Monomer energy intensity targets for 350 WH/kg, rely on the traditional graphite impossible to achieve this goal, belong to the age of silicon carbon negative is coming.

Survey data in 2017, according to the anode materials shipped 150000 tons, but silicon carbon negative only shipped more than 1000 tons, accounting for the proportion of less than 1%.In the downstream of the power The battery Energy density increase demand urgent situation, predicts 2020, silicon carbon negative anode materials is expected to reach delivery ratio above 10%.The market space for many companies.

In black stone blue ocean general manager Luo bin he point of view, the current applications of silicon carbon negative, there are two problems: one is performance cannot meet the application requirements, expansion and the first problem to be solved; Second, cost is high, demand is still small.

"Silicon carbon negative to achieve large-scale application premise is whether the technical difficulties were overcome."Luo bin he said, at present the graphite anode of the first effect of more than 90%, and silicon carbon negative just over 80%, the middle gap remains large. Even if the first effect problem can be temporarily suspended, but inflation problem involves the battery safety, this is absolutely not allowed to careless treatment.

The current industry usually adopt the way of doping and coated to solve the problem of silicon carbon negative inflation, but the effect is not too ideal. Who can really solve the problem of inflation, who occupied the commanding heights of the silicon carbon negative.

Luo bin he revealed, blue ocean black stone since 2015 began with northwestern poly technical university cooperative research and development of silicon carbon negative, after hard study finally find a solution."Silicon expansion is its inherent performance, we think of some way to get it in natural space, at the macro will not show on the surface. Like a naughty child, and how to make ring in fixed space."

According to the research and development ideas, blue ocean black stone's new silicon carbon negative products have significant advantages such as low inflation and high capacity. At present the product has been to pilot level (the difficulty greatly Soft package battery Testing), plans to production during the first half of next year.

Be worth what carry is, from a technical perspective, to make the performance of the silicon carbon anode materials into full play, also need to include the anode material, electrolyte and adhesive, "package" formulation and process solutions.

Apply to silicon carbide materials of adhesive bonding ability is better than general products, including carbon and silicon bonding ability and the cohesion of the product itself is very strong. Silicon at the time of inflation, adhesive can hold it; When pull adhesive moderate deformation, can recover, to ensure the performance and life of the battery.

As a professional supplier of water-based adhesive, blue ocean in R&D and silicon carbon negative has natural advantages supporting binder.

"The adhesive products currently trying and silicon carbon negative form a complete set, especially for silicon carbon negative electrode modified products in research and development. Silicon carbon negative future company will form a complete set of special adhesive brand."Luo bin he said.

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