Facile synthesis of hierarchically structured manganese oxides as anode for lithium-ion batteries
Zhao Deng , Xing Huang , Xu Zhao , Hua Cheng , Hong-en Wang
Journal of Central South University ›› 2019, Vol. 26 ›› Issue (6) : 1481 -1492.
Facile synthesis of hierarchically structured manganese oxides as anode for lithium-ion batteries
Developing high-performance lithium ion batteries (LIBs) using manganese oxides as anodes is attractive due to their high theoretical capacity and abundant resources. Herein, we report a facile synthesis of hierarchical spherical MnO2 containing coherent amorphous/crystalline domained by a simple yet effective redox precipitation reaction at room temperature. Further, flower-like CoMn2O4 constructed by single-crystalline spinel nanosheets has been fabricated using MnO2 as precursor. This mild methodology avoids undesired particle aggregation and loss of active surface area in conventional hydrothermal or solid-state processes. Moreover, both MnO2 and CoMn2O4 nanosheets manifest superior lithium-ion storage properties, rendering them promising applications in LIBs and other energy-related fields.
manganese oxides / nanostructures / anode materials / lithium ion batteries / electrochemistry
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