High-Performance Lithium-Iodine Flow Battery

被引：104

作者：

Zhao, Yu ^{[1
]}

Byon, Hye Ryung ^{[1
]}

机构：

[1] RIKEN, Byon Initiat Res Unit IRU, Wako, Saitama 3510198, Japan

来源：

ADVANCED ENERGY MATERIALS | 2013年 / 3卷 / 12期

关键词：

aqueous electrodes; batteries; electrochemistry; iodine; redox couples; CURRENT-DENSITY; LI-ION; CATHODE; TEMPERATURE; CAPACITY; ELECTROLYTES;

D O I：

10.1002/aenm.201300627

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A cathode-flow lithium-iodine (Li-I) battery is proposed operating by the triiodide/iodide (I-3(-)/I-) redox couple in aqueous solution. The aqueous Li-I battery has noticeably high energy density (approximate to 0.28 kWh kg(cell)(-1)) because of the considerable solubility of LiI in aqueous solution (approximate to 8.2 m) and reasonably high power density (approximate to 130 mW cm(-2) at a current rate of 60 mA cm(-2), 328 K). In the operation of cathode-flow mode, the Li-I battery attains high storage capacity (approximate to 90% of the theoretical capacity), Coulombic efficiency (100% +/- 1% in 2-20 cycles) and cyclic performance (>99% capacity retention for 20 cycles) up to total capacity of 100 mAh.

引用

页码：1630 / 1635

页数：6

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