摘要
以硫化聚丙烯腈为正极活性材料,制备了044026型锂离子电池。当充放电电流为0.1C时,电池的比能量为246Wh/kg,能量密度为401 Wh/L,内阻约为70 mΩ。50 mA恒流过充实验结果表明:当电池充电至3.90 V时,电压的上升开始放缓,50 h后电压上升到4.70 V,电池外观没有大的变化。
044026 type Li-ion battery with sulfurized polyacrylonitrile(PAN) as positive active material was fabricated. When the charge-discharge current was 0.1 C, the battery' s specific energy was 246 Wh/kg, energy density was 401 Wh/L, internal resistance was about 70 mΩ. The results of 50 mA galvanostatic overcharge experiment showed that the increasing of voltage slowed down when the battery charged to 3.90 V. The voltage increased to 4.70 V after 50 h,the appearance of the battery had no distinct change.
出处
《电池》
CAS
CSCD
北大核心
2008年第2期73-74,共2页
Battery Bimonthly