鋰硫磺電池

鋰硫磺電池（lithium–sulfur battery，Li-S battery）係隻化學充電池。佢嘅能量對重量比相當高而出名^[1]。鋰輕身，硫磺都唔重，鋰硫磺相對較輕，而密度同水差唔多。2008年8月，當時飛最長程同最高嘅太陽能無人飛機 Zephyr 6 就係用呢隻電池^[2]。

Li-S 電池嘅理論容量約係 1670 mAh/g ^[3]，比起常規鋰離子電池（LiCoO₂，約 140mAh/g）高出十倍左右，而常規鋰離子電正極要用嘅鈷又貴又難搵；硫磺，成本低又易搵，Li-S 電池大可繼承鋰離子電池^[4] 。

鋰硫磺電池嘅化學反應：

正極 : ${\ce {{S8}+{16Li^{+}}+16{\it {{e}^{-}}}<=>8Li2S}}$
負極 : ${\ce {Li<=>{Li^{+}}+{\it {{e}^{-}}}}}$

攷

↑ Zhang, Sheng S (2013). "Liquid electrolyte lithium/sulfur battery: Fundamental chemistry, problems, and solutions". Journal of Power Sources. 231: 153–162. doi:10.1016/j.jpowsour.2012.12.102.
↑ Amos, J. (24 August 2008) "Solar plane makes record flight" BBC News
↑ 獨古薫、渡邉正義、硫黄系二次電池新技術説明会科学技術振興機構
↑ Arumugam Manthiram, Yongzhu Fu, Yu-Sheng Su "Challenges and Prospects of Lithium–Sulfur Batteries" Acc. Chem. Res., 2013, volume 46, pp 1125–1134. DOI:10.1021/ar300179v

呢篇鋰硫磺電池係仲未搞掂嘅楔位文。歡迎幫維基百科擴寫佢。

[1] Zhang, Sheng S (2013). "Liquid electrolyte lithium/sulfur battery: Fundamental chemistry, problems, and solutions". Journal of Power Sources. 231: 153–162. doi:10.1016/j.jpowsour.2012.12.102.

[2] Amos, J. (24 August 2008) "Solar plane makes record flight" BBC News

[yoko03-3] 獨古薫、渡邉正義、硫黄系二次電池新技術説明会科学技術振興機構

[4] Arumugam Manthiram, Yongzhu Fu, Yu-Sheng Su "Challenges and Prospects of Lithium–Sulfur Batteries" Acc. Chem. Res., 2013, volume 46, pp 1125–1134. DOI:10.1021/ar300179v

[1]

[2]

[3]

[4]