Nano silica for battery

  ■ overview this product is mainly prepared by surface treatment of nano silica with nano technology
The product features high content, uniform particle size and good activity
Adding a certain proportion of nano silica for battery (ug-sp30d) to the battery can improve the electrical properties of the battery, such as mechanical properties, conductivity, elongation at break, cycle performance, life, etc
Therefore, nano silica has high application value in the battery field

■ technical indicators
Project   index
Model   UG-SP30D
Appearance   White terminal
Primary particle size, nm   30± ten
Specific surface area, m2/g   200± thirty
Content,   % & ge; ninety-nine point eight
Surface treatment agent 0
1%   Treatment agent for battery
PH value   4
0-6
5
Loss on drying,%   & le; one
■ application characteristics
1
The colloidal electrolyte prepared with nano silicon dioxide has strong gel ability, suitable viscosity, soft colloidal electrolyte formed, good thixotropy, moderate three-dimensional network structure of colloid, small resistance, large discharge current, high capacitance, no hydration stratification, and can also increase the cycle life of colloid

2
Nano silica was added to the separator to increase the total amount of colloidal electrolyte
Effectively prevent electrolyte stratification, reduce corrosion rate and improve service life
Adding nano SiO2 can improve the tensile strength of the separator and reduce the pore diameter of the separator; When the pressure on the separator is greater than 30KPa, the liquid absorption capacity of the separator added with nano SiO2 exceeds that of the pure glass wool separator;
3
The secondary lithium battery separator made of nano silicon dioxide in the composite polymer has high liquid absorption rate, conductivity and toughness
The electrolyte absorption rate is 184
4%, the room temperature conductivity is 1
20ms/cm, and the elongation at break is as high as 163%
The secondary lithium battery assembled with composite polymer membrane containing nano silicon dioxide has a specific capacity of 834
8mah/g for the first discharge, 400mah/g for the 40th discharge, and a cycle efficiency of more than 99
8%, showing good electrical performance

4
Nano SiO2 can reduce the crystallization rate of polymer system and keep it in amorphous state for a longer time

5
The granular nano silica between the positive and negative plates can maintain the consistency of electrolyte in the battery and reduce the dry water fault through oxygen holes

6
The introduction of nano SiO2 by in-situ composite method is beneficial to improve the conductivity of P (VDF-HFP) based microporous polymer electrolyte

7
Nano silica particles can absorb water in liquid electrolyte and reduce interfacial reaction

8
By adding nano silica powder to polymer lithium battery, the microstructure, mechanical and electrical properties of electrolyte membrane can be improved, and the electrolyte membrane has good conductivity and mechanical strength

■ recommended dosage: 0
2-2%, the customer can select the appropriate dosage according to the actual situation

■ package   Package: 10kg / bag