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Preparation of few-layer reduced graphene oxide-wrapped mesoporous Li4Ti5O12 spheres and its application as an anode material for lithium-ion batteries 被引量:1
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作者 Jun Peng yong-tao zuo +1 位作者 Gang Li Gang Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第9期1559-1562,共4页
A three-dimensional few-layer reduced graphene oxide-wrapped mesoporous Li4TisO12 (m-LTO@FL- RGO) electrode is produced using a simple solution fabrication process. When tested as an anode for Li- ion batteries, the... A three-dimensional few-layer reduced graphene oxide-wrapped mesoporous Li4TisO12 (m-LTO@FL- RGO) electrode is produced using a simple solution fabrication process. When tested as an anode for Li- ion batteries, the m-LTO@FL-RGO composite exhibits excellent rate capability and superior cycle life. The capacity of m-LTO@FL-RGO reaches 165.4 mA h g 1 after 100 cycles between I and 2.5 V at a rate of 1 C. Even at a rate of 30 C, a high discharge capacity of 115.1 mA h g 1 is still obtained, which is three times higher than the pristine mesoporous Li4TisO12 (m-LTO). The graphene nanosheets are incorporated into the m-LTO microspheres homogenously, which provide a high conductive network for electron transportation. 展开更多
关键词 Lithium titanate Graphene Mesoporous spheres Anode Lithium-ion batteries
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The fabrication of hollow magnetite microspheres with a nearly 100% morphological yield and their applications in lithium ion batteries
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作者 yong-tao zuo Jun Peng +3 位作者 Gang Li Li Liu Zhi-Song Han Gang Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第6期887-890,共4页
Hollow Fe3O4(H-Fe3O4) microspheres were fabricated through a facile one-step solvothermal synthesis,which was performed in an ethylene glycol(EG)–diethylene glycol(DEG) mixed solvent using polyethylene glycol(... Hollow Fe3O4(H-Fe3O4) microspheres were fabricated through a facile one-step solvothermal synthesis,which was performed in an ethylene glycol(EG)–diethylene glycol(DEG) mixed solvent using polyethylene glycol(PEG) as the stabilizer. The addition of DEG increased the viscosity of the system,which caused the Fe3O4 primary crystal to aggregate slower and the morphological yield to approach nearly 100%. The as-prepared hollow Fe3O4 microspheres show promise for application in lithium ion battery anodes and showed a reversible specific capacity of 453.3 mAh g^-1 after 50 cycles at 100 mA g^-1. 展开更多
关键词 Hollow magnetite Mixed solvent Anode material Lithium ion batteries
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