Preparation and Electrochemical Performance of Li4Ti5O12/Co3O4 Composite as an Anode of Lithium-Ion Battery

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The Li4Ti5O12/Co3O4 composites were prepared by hydrothermal reaction method with different Co3O4 mass content (3%, 7%, 11%, and 15%). The Li4Ti5O12 nanoparticles were set in-situ on the Co3O4 sheet. Co ion was doped into the Li4Ti5O12 lattice. The first cycle specific capacity firstly increased and then decreased with Co3O4 content increasing, which the discharge capacity reached the peaking value that the first capacity was 1111 mAh/g and the specific discharge capacity retained 240 mAh/g after 200 cycles. After 200 cycles of charge and discharge, the retention of the capacity was 96.4% at 0.1 A/g, and the retention of the capacity was 98.4% at 0.5 A/g.

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Solid State Phenomena (Volume 330)

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133-138

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April 2022

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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