材料科学
电池(电)
电极
能量密度
比例(比率)
钥匙(锁)
比能量
纳米技术
储能
工程物理
工作(物理)
工艺工程
计算机科学
机械工程
功率(物理)
热力学
工程类
物理
物理化学
化学
量子力学
计算机安全
作者
Hyeon Ji Shin,Won‐Jin Kwak,Doron Aurbach,Yang‐Kook Sun
标识
DOI:10.1002/adfm.201605500
摘要
Due to their high theoretical specific capacity and energy density, LiO 2 batteries are considered as candidates for next‐generation battery systems in place of conventional Li‐ion batteries for advanced applications such as electric vehicles. However, low energy efficiency, poor cycle life, and Li‐metal safety issues make the use of LiO 2 batteries yet impractical. In addition, actual cell capacities are very low, and since only small‐scale electrodes are currently tested, it is hard to predict the properties of large‐size electrodes and cells, thus evaluating and judging real practical challenges related to this battery technology. In this work, the behavior of pouch‐type LiO 2 cells using 3 × 5 cm 2 sized electrodes is investigated and it is confirmed that Li‐metal is a key issue for the upscale of LiO 2 cells. This study can help to determine which parameters are the most important for developing practical LiO 2 batteries.
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