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电解液系列Electrolyte
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YH-52系列动力电池电解液

冰河冷媒     2017-11-15

动力电池用电解液

YH-52系列动力电池电解液
 
特性与应用
该系列产品适用于正极为锰酸锂,负极为人造石墨或改性天然石墨的动力型电池,适合方形和圆柱电池。其特点是:常温循环性能好,高低温性能良好。 
 
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 1.21±0.03 密度瓶法
电导率(25℃) mS/cm 9.40±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≥98%;100周循环容量保持率≥93%;
200周循环容量保持率≥92%;500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≥70%
高温性能
55℃存放30d后,膨胀率≤3%,容量恢复率≥86%
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 Li-ion power battery
YH-52 series of electrolyte for Li-ion power battery
Characteristic&Application
  This series of electrolytes are researched and designed for Li-ion battery in EV using LiMn2Oas cathode material and artificial or modified natural graphite as anode material,which are suitable for cylindrical and prismatic cell. The characteristics of the battery using YH-52 electrolyte include good cycle life at ambient temperature 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 1.21±0.03 Pycnometer method
Conductivity(25℃) mS/cm 9.40±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 500 cycles are equal or greater than 98%,93%,926% 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 70% under 0.2C.
High-low Temperature Performance
After stored at 55℃ for 30 days,the swelling rate is equal or less than 3% and the capacity recovery rate of the fully charged battery is equal or greater than 86%.
Safety Performance
Smokeless,nonflammable,inexplosive under 3C/5V overcharging,pierced by a needle or extruding.

 


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