Microwave‐Assisted Preparation and Characterization of a Polyoxometalate‐Based Inorganic 2D Framework Anode for Enhancing Lithium‐Ion Battery Performance. Issue 9 (17th April 2018)

• Record Type: Journal Article
• Authors: Nie, Yan‐Mei; Liang, Shuang; Yu, Wei‐Dong; Yuan, Hao; Yan, Jun
• Is Part Of: Chemistry, an Asian journal. Volume 13:Issue 9(2018)
• Page Start: 1199
• Page End: 1205
• Publication Date: 2018-04-17
• Subjects: anodes -- lithium-ion batteries -- microwave irradiation -- molybdophosphates -- nanocomposites; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201800070
• Languages: English
• ISSNs: 1861-4728

Abstract

Abstract: A pure inorganic 2D network molybdophosphate, [Mn3 Mo12 O24 (OH)6 (HPO3 )8 (H2 O)6 ] 4− (1 a ), synthesized through microwave irradiation with the existence of Mn 2+ and organic cations and isolated as [(CH3 )2 NH2 ]3 Na[Mn3 Mo12 O24 (OH)6 (HPO3 )8 (H2 O)6 ]⋅ 12 H2 O (1 ), is found to possess highly enhanced performance in lithium‐ion batteries' anode materials. The molecule shows multielectron redox properties suitable for producing anode materials with a specific capacity of 602 mA h g −1 at 100 mA g −1 after 50 cycles in lithium‐ion batteries, although its specific capacity is the highest among all the reported pure inorganic 2D polyoxometalates to date, the cyclic stability is not that satisfactory. A hybrid nanocomposite of this 2D network and polypyrrole cations effectively reduces the capacity fading in initial cycles, and increases the stability and improves the electrochemical performance of lithium‐ion batteries as well. Abstract : Lithium‐ion batteries : {[Mn3 Mo12 O24 (OH)6 (HPO3 )8 (H2 O)6 ]} n, which was prepared by a microwave‐assisted method, is found to possess significantly enhanced performance in lithium‐ion battery anodes.