Saving electric energy by integrating a photoelectrode into a Li-ion battery

被引：64

作者：

Li, Qi ^{[1
,2
]}

Li, Na ^{[1
]}

Ishida, Masayoshi ^{[2
]}

Zhou, Haoshen ^{[1
,2
,3
,4
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Tsukuba, Ibaraki 3058568, Japan

[2] Univ Tsukuba, Int Grad Sch Syst & Informat Engn, Tsukuba, Ibaraki 3058573, Japan

[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[4] Nanjing Univ, Dept Energy Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 42期

关键词：

LITHIUM BATTERIES; SOLAR-CELLS; STORAGE; CONVERSION; OXYGEN; POWER;

D O I：

10.1039/c5ta06908d

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：

We here report a novel photoassisted chargeable Li-ion battery (LIB) consisting of a LiFePO4 cathode, a lithium anode and a TiO2 photo-electrode coupled with an iodide (I-) ion redox shuttle for saving electric energy. Due to the contribution of the photovoltage, the photocharging voltage of the LiFePO4 cathode is reduced to 2.78 V, which is lower than the discharge voltage of 3.41 V, resulting in similar to 20% electric energy saving. This new conceptual design will provide a possible route for direct conversion and storage of solar energy in LIBs.

引用

页码：20903 / 20907

页数：5

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