Crystal water for high performance layered manganese oxide cathodes in aqueous rechargeable zinc batteries

2019 ◽  
Vol 12 (6) ◽  
pp. 1999-2009 ◽  
Author(s):  
Kwan Woo Nam ◽  
Heejin Kim ◽  
Jin Hyeok Choi ◽  
Jang Wook Choi

Crystal water improves electrochemical performance of the layered manganese oxide for aqueous rechargeable zinc batteries.

2013 ◽  
Vol 160 (10) ◽  
pp. A1856-A1862 ◽  
Author(s):  
Rosalind J. Gummow ◽  
Neeraj Sharma ◽  
Ruishu Feng ◽  
Guihong Han ◽  
Yinghe He

2017 ◽  
Vol 5 (34) ◽  
pp. 18214-18220 ◽  
Author(s):  
Chao Luo ◽  
Alex Langrock ◽  
Xiulin Fan ◽  
Yujia Liang ◽  
Chunsheng Wang

Ni/Fe doping and atomic layer deposition are two effective methods to stabilize P2-type sodium manganese oxide cathodes.


2020 ◽  
Vol 861 ◽  
pp. 284-288
Author(s):  
Zhen Jun Dou ◽  
Zong Yi Qin

Mn3O4 nanosheets were deposited electrochemically on graphene modified carbon cloth (G–CC). The graphene layer improved significantly the hydrophilic property of carbon cloth and its compatibility with active materials, as a result, lower resistance and better structural stability were obtained for Mn3O4/G–CC compared with those for the electrode based on neat carbon cloth. Furthermore, the Mn3O4/G–CC possessed a capacitance of 1335 mF cm–2 at a current density of 2 mA cm−2, and a capacitance retention of up to 88 % after 2000 cycles at 10 mA cm–2. It is believed that manganese oxide was anchored strongly on graphene layer through C–O–metal bonds, and the graphene layer on the surface of the CC could serve as elastic buffering layers to release the strain within manganese oxide, resulting the remarkable improvements in electrochemical performance. These excellent characteristics make this kind of the composites promising candidates as high performance electrodes for supercapacitor.


2021 ◽  
Author(s):  
Jing Wan ◽  
Peiyuan Ji ◽  
Bangxing Li ◽  
Y Xi ◽  
Xiao Gu ◽  
...  

One of the biggest challenges faced by the layered manganese oxide MnO2 used as supercapacitor cathode is capacity fading caused by chemo-mechanical degradation and/or structural transformation occurring in the discharging/charging...


2017 ◽  
Vol 5 (12) ◽  
pp. 5858-5864 ◽  
Author(s):  
Ezequiel de la Llave ◽  
Prasant Kumar Nayak ◽  
Elena Levi ◽  
Tirupathi Rao Penki ◽  
Shaul Bublil ◽  
...  

Lithium doping improves structural stability and increases average working potential of manganese oxide cathodes for sodium-ion batteries.


Author(s):  
Tumiso E. Mabokela ◽  
Assumpta C Nwanya ◽  
Miranda M Ndipingwi ◽  
Sinethemba Kaba ◽  
Precious Ekwere ◽  
...  

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