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Nanometersilicon dioxide( for battery)

Property:

Surface treatment with the worlds most advanced nanotechnology.

High purity,uniform particle size,perfect activity.

Electrochemistry property of battery can be improve well by adding some nano SiO₂.

Has a high value of application in the field of battery.

Specification:

Item                                    Specification

Item NO.                                                         VK-SP15D

Appearance                                                    White powder

APS,  nm                                                       30±10

SSA,  m²/g                                                     200±30

Assay,   %                                                     ≥99.8

Surface treatment agent                                 0.1% battery-specific treatment agent

PH                                                                  4.0-6.5

Loss on drying,  %                                        ≤1.0

Application:

1. Gel electrolyte made of nano SiO₂ has strong property of gel,good viscosity, forming soft colloid electrolyte, good thixotropy, mezzo three-dimensional network structure of gel, small, resistance, big electric current of discharge, high capacity and will not be hydrated and layered. Nano SiO₂ greatly increase the cycle life-span of colloid.

2. Used in ARLA: can increase the gross of colloid electrolyte. Effectively prevent electrolyte from layereing and reduce the pace of corrupting.Improve the using life,tensile strength and reduce the aperture of ARLA.

3. In secondary li-ion battery: PVDF-HFP/SiO₂ composite polymer diaphragm has high absorbency, conductivity and toughness.The absorbency of electrolyte can up to 184.4%  and its conductivity at room temperature is 1.20mS/cm, fractured elongation is 163% .The  initial discharge specific capacity of secondary li-ion battery with PVDF-HFP/SiO₂ composite polymer diaphragm is 834.8mAh/g and cycle efficiency is approximate 99.8%.

4. Nano SiO₂ can reduce the crystallization rate of polymer system and to make it has long time to remain a state of amorphous phase.

5. Nano SiO₂ particles between positive/negative polar plate can reduce the diwater fault well.

6. Help to improve the conductivity of porous polymer electrolytes effectly.

7. Nano SiO₂ can absorb moisture in the liquid electrolyte and reduce the interface reaction.

8. Used in polymer lithium batteriescan:greatly improve the properties of electrolytical film, such as microstructure, mechanical and electrical properties, so that the electrolytical film has good conductivity and mechanical strength.

Dosage: 0.2-2%

Packet outfit: 10 kgs/bag