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High-Performance Organic Lithium Batteries with an Ether-Based Electrolyte and 9,10-Anthraquinone (AQ)/CMK-3 Cathode

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Organic carbonyl electrode materials of lithium batteries have shown multifunctional molecule design and high capacity, but have the problems of poor cycling and low rate performance due to their high solubility in traditional
carbonate-based electrolytes and low conductivity. High-performance organic lithium batteries with modifi ed ether-based electrolyte (2 M LiN(CF 3 SO 2 ) 2 in 1,3-dioxolane/dimethoxyethane solvent with 1% LiNO 3 additive (2 M -DD-
1%L)) and 9,10-anthraquinone (AQ)/CMK-3 (AQC) nanocomposite cathode are reported here. The electrochemical results manifest that 2 M -DD-1%L electrolyte promotes the cycling performance due to the restraint of AQ
dissolution in ether-based electrolyte with high Li salt concentration and formation of a protection fi lm on the surface of the anode. Additionally, the AQC nanocomposite improves the rate performance because of the nanoconfi
nement effect of CMK-3 and the decrease of charge transfer impedance. In 2 M -DD-1%L electrolyte, AQC nanocomposite delivers an initial discharge capacity of 205 mA h g −1 and a capacity of 174 mA h g −1 after 100 cycles at
0.2 C. Even at a high rate of 2 C, its capacity is 146 mA h g −1 . This strategy is also used for other organic carbonyl compounds with quinone substructures and they maintain high stable capacities. This sheds light on the development of advanced organic lithium batteries with carbonyl electrode materials and ether-based electrolytes.

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Informasi Detail

Judul Seri

Adv. Sci.

No. Panggil

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Penerbit

: The Authors., 2015

Deskripsi Fisik

Adv. Sci. 2015, 2, 1500018

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KESEHATAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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