CAJ | 학술논문

研究试验了锂离子蓄电池的不同电极材料及电极成型工艺，分别制成了以氧化钴锂（LiCoO2）和氧化镍钴锂（LiNi0．8Co0．2O2）为正极，中间相炭微珠（MCMB）为负极的18650型锂离子蓄电池。电池的放电容量分别大于1 550 mAh和1 700 mAh。电池比能量达到了130 Wh／kg和350 Wh／L。在室温条件下，0．5 C电池的循环寿命1000次时，其容量仍为初始容量的60％、70％。以氧化钴锂为正极的电池在－40 ℃、0．2 C速率、终止电压2．5 V的条件下，放电容量为室温容量的60％。实验结果表明，电池安全可靠。
연구시험료리리자축전지적불동전겁재료급전겁성형공예，분별제성료이양화고리（LiCoO2）화양화얼고리（LiNi0．8Co0．2O2）위정겁，중간상탄미주（MCMB）위부겁적18650형리리자축전지。전지적방전용량분별대우1 550 mAh화1 700 mAh。전지비능량체도료130 Wh／kg화350 Wh／L。재실온조건하，0．5 C전지적순배수명1000차시，기용량잉위초시용량적60％、70％。이양화고리위정겁적전지재－40 ℃、0．2 C속솔、종지전압2．5 V적조건하，방전용량위실온용량적60％。실험결과표명，전지안전가고。
Various electrode materials and electrode processes for lithium-ion batteries were investigated and tested． The 18650 size lithium-ion batteries， using LiCoO2、LiNi0．8Co0．2O2 as cathode electrode and MCMB as anode electrode， were constructed． The discharge experiments were carried out at various temperatures and current densities． The results show that cells discharge capacity is over 1 550 mAh and 1 700 mAh （respectively） and the specific energy is 130 Wh／kg and 350 Wh／L． The batteries cycle life is over 1 000 times at room temperature， and discharge capacity is 60％、70％ of the initial capacity． The discharge capacity of the battery with LiCoO2／MCMB at－40 ℃、0．2 C、2．5 V （terminal voltage） is 60％ of discharge capacity at room temperature． The safety experiment results show that the batteries are safe and reliable．