Light-assisted delithiation of lithium iron phosphate nanocrystals towards photo-rechargeable lithium ion batteries

被引：226

作者：

Paolella, Andrea ^{[1
,2
]}

Faure, Cyril ^{[1
]}

Bertoni, Giovanni ^{[3
]}

Marras, Sergio ^{[4
]}

Guerfi, Abdelbast ^{[1
]}

Darwiche, Ali ^{[1
]}

Hovington, Pierre ^{[1
]}

Commarieu, Basile ^{[1
]}

Wang, Zhuoran ^{[2
]}

Prato, Mirko ^{[4
]}

Colombo, Massimo ^{[4
]}

Monaco, Simone ^{[4
]}

Zhu, Wen ^{[1
]}

Feng, Zimin ^{[1
]}

Vijh, Ashok ^{[1
]}

George, Chandramohan ^{[5
]}

Demopoulos, George P. ^{[2
]}

Armand, Michel ^{[6
]}

Zaghib, Karim ^{[1
]}

机构：

[1] Inst Rech Hydroquebec IREQ, 1800 Blvd Lionel Boulet, Varennes, PQ J3X 1S1, Canada

[2] McGill Univ, Dept Min & Mat Engn, Wong Bldg,3610 Univ St, Montreal, PQ H3A OC5, Canada

[3] IMEM CNR, Parco Area Sci 37-A, I-43124 Parma, Italy

[4] Ist Italiano Tecnol, Nanochem Dept, Via Morego 30, I-16130 Genoa, Italy

[5] Univ Cambridge, Inst Mfg, Dept Engn, 17 Charles Babbage Rd, Cambridge CB3 0FS, England

[6] CIC Energigune, Parque Tecnol C Albert Einstein 48, Minano 01510, Alava, Spain

来源：

NATURE COMMUNICATIONS | 2017年 / 8卷

关键词：

REDOX FLOW BATTERY; PHOTOELECTROCHEMICAL ENERGY-CONVERSION; LIPF6-BASED ELECTROLYTES; LI-O-2; BATTERY; SOLAR-CELL; X-RAY; STORAGE; LIFEPO4; NANOPLATELETS; DECOMPOSITION;

D O I：

10.1038/ncomms14643

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Recently, intensive efforts are dedicated to convert and store the solar energy in a single device. Herein, dye-synthesized solar cell technology is combined with lithium-ion materials to investigate light-assisted battery charging. In particular we report the direct photooxidation of lithium iron phosphate nanocrystals in the presence of a dye as a hybrid photo-cathode in a two-electrode system, with lithium metal as anode and lithium hexafluorophosphate in carbonate-based electrolyte; a configuration corresponding to lithium ion battery charging. Dye-sensitization generates electron-hole pairs with the holes aiding the delithiation of lithium iron phosphate at the cathode and electrons utilized in the formation of a solid electrolyte interface at the anode via oxygen reduction. Lithium iron phosphate acts effectively as a reversible redox agent for the regeneration of the dye. Our findings provide possibilities in advancing the design principles for photo-rechargeable lithium ion batteries.

引用

页数：10