碳化温度对石油焦电性能的影响

Effect of carbonization temperature on petroleum coke's electricity performance

为了提高石油焦的充放电容量、第一次的充放电效率和减少其不可逆容量,对石油焦进行热处理,将粒径在 0.991-0.495mm之间的石油焦在氮气保护的高温炉中以 30(℃/min)分别升温到 700℃、900 ℃、1100 ℃和 1300 ℃进行碳化,然后测试其电性能,发现电极的第一次充放电效率随着碳化温度的升高而升高,并且在 900 ℃时,电极的放电量最大。

In order to improve petroleum coke,’s charge-discharge capacity and the first cycle charge-discharge efficiency and decrease irreversible capacity,we have made use of the heat treatment. The granule whose diameter is between 0.991 and 0.495 millimeter is heated at a speed of thirty degree an hour in the high temperature furnace that is protected by nitrogen gas. After being carbonized separately at 700,900 ,1100 and 1300 degree,petroleum coke’s electricity performance is measured .It’s found that with the temperature rising ,the electrode’s first rechargeable efficiency is raised, and that electrode’s dischargeable capacity is biggest at 900 degree.