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电解液系列Electrolyte
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YH-11系列数码电池电解液

冰河冷媒     2017-11-15

普通数码电池用电解液

YH-11系列数码电池电解液
特性与应用
该系列电解液针对钴酸锂及三元正极材料的性能特点研发,适用于方形和圆柱电池。其特点是:常温循环性能好,容量发挥充分,高低温性能良好、综合性能好。 
 
电解液组分
EC、DMC、EMC、LiFP6及功能型添加剂
 
物理性能技术指标
检测项目 单位 技术指标 检测方法
水分含量 ppm ≤15 KarlFischer库伦法
游离酸(以HF计) ppm ≤50 酸碱滴定法
密度(25℃) g/mL 1.23±0.03 密度瓶法
电导率(25℃) mS/cm 9.50±0.3 电导率仪
单项金属杂质 ppm ≤5 ICP-Mass
色度 / 无色或淡黄色 目视
 
电池基本性能
循环性能
1CC/1CD,50周循环容量保持率≥95%;100周循环容量保持率≥93%;
200周循环容量保持率≥92%;300周循环容量保持率≥86%;
低温性能
-20℃静置24h后,0.2C放电容量保持率≥75%
0℃静置24h后,0.2C放电容量保持率≥96.9%
高温性能
55℃存放7d后,膨胀率<3%,放电容量保持率≥95.2%
安全性能
3C/5V过充、针刺、挤压,电池不冒烟、不起火、不爆炸
 
 
 
 
 
 


Electrolyte for conventional consumer Li-ion battery
YH-11 series of electrolyte for conventional consumer Li-ion battery
Characteristic&Application
  This series of electrolytes are researched and designed for conventional consumer Li-ion battery using  Li(NixCoyMn1-x-y) or LiCoOas cathode material,which are suitable for prismatic and cylindrical cell. The characteristics of the battery using YH-11 electrolyte include good cycle life at ambient temperature,well comprehensive performance and good performance at high or low temperature.                                                                                             
Composition
EC,DMC,EMC,LiFP6,additive,etc.
 
Technical Indicator of Physical Properties

 

Item Unit Technical Indicator Testing Method
Moisture content ppm ≤15 KarlFischer method
Hydrofluoric acid ppm ≤50 Acid-base titration
Density(25℃) g/mL 1.23±0.03 Pycnometer method
Conductivity(25℃) mS/cm 9.50±0.3 Conductivity meter
Single metal impurity ppm ≤5 ICP-Mass
Colority / Colorless to pale yellow Visual

 
Physical Properties

 

 

Cycle Performance
The capacity retention rate after 50,100,200 and 300 cycles are equal or greater than 95%,93%,92% and 86% respectively under 1CC/1CD.
Low Temperature Performance
After stored at -20℃ for 24 hours,the capacity retention rate of the fully charged battery is equal orgreater than 75% under 0.2C.
After stored at -20℃ for 24 hours,the capacity retention rate of the fully charged battery is equal orgreater than 96.9% under 0.2C.
High-low Temperature Performance
After stored at 55℃ for 7 days,the swelling rate is equal or less than 3% and the capacity retention rate of the fully charged battery is equal or greater than 95.2%.
Safety Performance
Smokeless,nonflammable,inexplosive under 3C/5V overcharging,pierced by a needle or extruding.

 


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