A highly integrated All-manganese battery with oxide nanoparticles supported on the cathode and anode by super-aligned carbon nanotubesElectronic supplementary information (ESI) available. See DOI: 10.1039/c8ta11415c

• Main Authors: Chen, Min, Pan, Zhenghui, Jin, Xiaojing, Chen, Zhi, Zhong, Yaotang, Wang, Xianshu, Qiu, Yongcai, Xu, Menqing, Li, Weishan, Zhang, Yuegang
• Format: Journal Article
• Language: English
• Published: 26.02.2019
• ISSN: 2050-7488; 2050-7496
• DOI: 10.1039/c8ta11415c

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 1.2 Mn 0.6 Ni 0.2 O 2 , 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. The highly integrated all-manganese battery based on the LMN/SACNT cathode and the MnO/SACNT anode is flexible and exhibits excellent performances.