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Battery & NEW Energy Industry



SFEP is committed to providing a package of solutions for Battery & NEW Energy Industry:

Products in Gel Batteries:
Silica gel battery —Wacker fumed silica




The introduction of HDK applies in gel batteries


Wacker fumed silica is a type of highly-purified, white, odorless Nano powder material. The product has remarkable functions such as thickening, thixotropy, controlling the flowing and anti-caking. Except for traditional application, it is widely used in gel batteries in recent years.  The gel battery which called “maintenance-free storage“battery is developed on the basis of traditional lead-acid battery .It’s harmless to the environment, resistant to ultra-high temperature/ultra-low temperature and has the merits of stability, anti-vibration and low-self discharge.


Wacker Nano fumed silica products


Types

V15

N20

N20ST

BET Specific surface area m?/g

150±20

200±30

200±30

Suspending liquid

PH value(4%)

3.8-4.3

3.8-4.3

3.8-4.3

Particle size[nm]

18

14

14

Tamped Density

[g/l]

Appx 50

Appx 40

Appx 40

product characteristics and suggestion of dispersion

Ordinary thickening, easily dispersed; high-speed disperser

Suggested type; excellent thickening; high-speed disperser

Easily dispersed; high-speed disperser














Power lithium electricity Products recommendation:




Cathode current collector---- Furukawa Electriccopper foil: NC-WS Li-ion electrolytic copper foil (8~20um)

Anode current collector---- SHOWA DENKO Vapor Grown Carbon Fiber SDX

Cathode thickener ----Daicel CMC

Cathode adhesives---- A&L AL series of styrene butadiene rubber latex SBR

Lithium-ion Battery conductivity agent---- AKZO KetjenblackEC-300J, EC-600JD


(to be continued…)

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