A highly integrated All-manganese battery with oxide nanoparticles supported on the cathode and anode by super-aligned carbon nanotubes

Min Chen; Zhenghui Pan; Xiaojing Jin; Zhi Chen; Yaotang Zhong; Xianshu Wang; Yongcai Qiu; Menqing Xu; Weishan Li; Yuegang Zhang

doi:10.1039/C8TA11415C

A highly integrated All-manganese battery with oxide nanoparticles supported on the cathode and anode by super-aligned carbon nanotubes†

Min Chen,^ab Zhenghui Pan,^c Xiaojing Jin,^e Zhi Chen,^a Yaotang Zhong,^a Xianshu Wang,^a Yongcai Qiu,

^abe Menqing Xu,^ab Weishan Li

*^ab and Yuegang Zhang

*^acd

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* Corresponding authors

^a School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
E-mail: yuegang.zhang@tsinghua.edu.cn, liwsh@scnu.edu.cn

^b Engineering Research Center of MTEES (Ministry of Education), Research Center of BMET (Guangdong Province), Key Laboratory of ETESPG (GHEI), South China Normal University, Guangzhou 510006, China

^c Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China

^d Department of Physics, Tsinghua University, Beijing 100084, China

^e School of Environment and Energy, South China University of Technology, Guangzhou 510006, China

Abstract

Herein, we report a novel battery with the characteristics of high energy density, environmental friendliness, low cost, and long life, which is based on a lithium-rich oxide cathode (Li_1.2Mn_0.6Ni_0.2O₂, LMN) and a manganese oxide anode (MnO). The lithium-rich oxide with high crystallization was synthesized by controlling the nucleation temperature, and the anode and cathode possessed oxides with nanosized particles that were uniformly dispersed and supported by super-aligned carbon nanotubes (SACNTs) without any binder or current collector. With these fabrications, both LMN and MnO exhibited excellent cyclic stability and rate capability; especially, an initial Coulombic efficiency of 84% and a capacity retention of 85% were achieved for LMN after 200 cycles at 20C. Consequently, the resultant battery delivered an energy density of 411 Wh kg⁻¹ based on the total weight of the anode, cathode, separator, and electrolyte. Most importantly, this battery worked well even when it was bended or twisted; this demonstrated its promising application as a sustainable energy storage device in various fields.

Journal of Materials Chemistry A

A highly integrated All-manganese battery with oxide nanoparticles supported on the cathode and anode by super-aligned carbon nanotubes†

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A highly integrated All-manganese battery with oxide nanoparticles supported on the cathode and anode by super-aligned carbon nanotubes

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