| 26650型Li4Ti5O12锂离子电池的研制 |
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| 引用本文： | 崔明,许汉良,张帆,郭付祥.26650型Li4Ti5O12锂离子电池的研制[J].电池工业,2009,14(5):309-312. |
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| 作者姓名： | 崔明 许汉良 张帆 郭付祥 |
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| 作者单位： | 崔明(珠海市鹏辉锂离子电池有限公司,广东,珠海,519100;深圳市环宇达电池科技有限公司,广东,深圳,518108);许汉良,张帆,郭付祥(珠海市鹏辉锂离子电池有限公司,广东,珠海,519100) |
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| 摘 要： | 采用LiMn2O4为正极材料,Li4Ti5O12为负极材料制成了26650/2500mAh的锂离子电池,该电池10C放电容量能够达到1.0C放电容量的97.30%,电池在-20℃的条件下以0.5C放电,能够放出25℃条件下容量的98.72%,在55℃的条件下以0.5C放电,能够放出25℃条件下容量的97.83%,1.0C循环测试200次后,容量剩余率为96.10%;电池以3.0C倍率过充到20.0V,没有爆炸和起火,经过针刺短路之后,没有爆炸和起火,电池表面最高温度不超过90℃。
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| 关 键 词： | Li4Ti5O12 锂离子电池 负极材料 LiMn2O4 电性能 |
Preparation and study of 26650 type Li-ion batteries with Li_4Ti_5O_(12) as negative electrode |
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| CUI Ming,XU Han-liang,ZHANG Fan,GUO Fu-xiang.Preparation and study of 26650 type Li-ion batteries with Li_4Ti_5O_(12) as negative electrode[J].Chinese Battery Industry,2009,14(5):309-312. |
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| Authors: | CUI Ming XU Han-liang ZHANG Fan GUO Fu-xiang |
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| Affiliation: | CUI Ming1,2*,XU Han-liang1,ZHANG Fan1,GUO Fu-xiang1 ( 1.Zhuhai Great Power Battery Co.,Ltd.,Zhuhai,Guangdong 510760,China,2. Power Tech Internation Co.,Shenzhen,Guangdong 518108,China ) |
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| Abstract: | The 26650 / 2 500 mAh Li-ion batteries were prepared with LiMn2O4 as positive electrode and Li4Ti5O12 as negative electrode. The discharge capacity of the batteries at 10.0 C was about 97.30% of the capacity obtained at 1.0 C. The discharge capacity at -20 ℃ could reach to 98.72% of that at 25 ℃ and 0.5 C. At the same time, the discharge capacity at 55 ℃ was about 97.83% of that value obtained at 25℃ and 0.5 C. The capacity was over 96.10% of the original capacity after 200 cycles, with the charge and discharge current was 1.0 C. Furthermore, there was no exploding and fire when the batteries were charged at 3.0 C to 20.0 V, or the batteries were short-circuited by puncturing, and the maximum surface temperature of the batteries didn＇t exceed 90 ℃. |
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| Keywords: | Li4Ti5O12 LiMn2O4 |
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