AA 型 TAG-LiMn_2O_4 锂离子蓄电池

用Ｌｉ２ＣＯ３和ＥＭＤ高温合成得到的尖晶石（ＬｉＭｎ２Ｏ４）作阴极活性材料，与Ｌｉ配对做成试验电池，充电容量达１３０ｍＡｈ／ｇ，放电容量为１１０ｍＡｈ／ｇ，显示ＬｉＭｎ２Ｏ４有较好的充放电性能。对热解苯碳（ＰｙＣ）、处理的人造石墨（ＴＡＧ）、天然石墨（ＮＧ）和玻璃碳（ＧＣ）进行研究，发现ＴＡＧ有较好的充放电性能。用ＬｉＭｎ２Ｏ４做阴极活性材料，ＴＡＧ做阳极活性材料，组装成ＡＡ型锂离子蓄电池，初始放电容量为５４０ｍＡｈ，以０．２Ｃ（１００ｍＡ）恒流放电，６０ｍＡ恒流充电，电池循环寿命已达２００次。

AA Size TAG LiMn 2O 4 lithium ion battery

The spinel manganese oxide (LiMn 2O 4) material were prepared by heat treating the mixture of Li 2CO 3 and EMD at high temperature.A test cell was presented by using the spinel LiMn 2O 4 as cathode active material and Lithium as anode active material.The first charge capacity is about 130mAh/g, discharge capacity is about 110mAh/g. The spinel LiMn 2O 4 have excellent charge/discharge performance. Pyrolytic benzene carbon (PyC), treated artificial graphite (TAG), natural graphite (NG) and glassy carbon (GC) were preliminarily studied. TAG exhibits excellent performance. The AA size Lithium ion battery can be assembled by using spinel LiMn 2O 4 as cathode active material and TAG as anode active material. The first discharge capacity is about 540mAh which discharged at 0.2C (100mA). The cyclic performance of a typical AA size cell was more than 200 cycles which discharged at 0.2C (100mA) and charged at 60mA as charge current.