Open AccessHydrothermal Synthesis of Li2MnO3-Stabilized LiMnO2 as a Cathode Material for Li-Ion Battery
Author(s) -
Ngoc Hung Vu,
VanDuong Dao,
Hong Ha Thi Vu,
Nguyen Van Noi,
Dinh Trinh Tran,
Minh Ngoc Ha,
Thanh-Dong Pham
Publication year - 2021
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2021/9312358
Subject(s) - materials science , cathode , hydrothermal circulation , composite number , phase (matter) , chemical engineering , battery (electricity) , ion , composite material , chemistry , organic chemistry , power (physics) , physics , engineering , quantum mechanics
Herein, we reported the composite structure of LiMnO2 and Li2MnO3 as a low-cost and environmentally benign cathode material. This composite with the main phase of LiMnO2 (90%) was synthesized by hydrothermal method at 220°C from LiOH and Mn(CH3COO)2 precursors. The obtained nanosized LiMnO2-LiMnO3 cathode material exhibits a high capacity of 265 mAh g-1 at C/10. The incorporation of Li2MnO3 into the LiMnO2 phase could stabilize the structure, leading to the improved cycle stability of the cathode. The capacity retention of the cathode was 93% after 80 cycles at C/2. Our results facilitate a potential strategy for developing high-performance cathode materials based on the Li-Mn-O system.
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