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Erschienen in:
06.06.2018
Bio-inspired fabrication of Li4Ti5O12 with hierarchical structure for high-performance anode in lithium-ion batteries
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 14/2018
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Abstract
Hierarchical porous structure is extremely essential to electrochemical performance of an anode material for lithium ion batteries, due to the high surface area and well-suited ion transport tunnel. In this work, a facile and environment-friendly synthesis approach has been developed to fabricate Li4Ti5O12 with hierarchical porous structure inherited from nature bagasse. The resultant sample exhibited an improved reversible capacity of 170.7 mAh g−1 at 1 A g−1 after 1000 cycles and an excellent rate performance of 91.2 mAh g−1 at a high current density of 10 A g−1 even after 3000 cycles. This high performance can be ascribed to the relatively high specific surface area and hierarchical porous structure of the composite providing short length of Li-ion transport path.