MOF-derived Zn–Mn mixed oxides@carbon hollow disks with robust hierarchical structure for high-performance lithium-ion batteries

2018 ◽  
Vol 6 (7) ◽  
pp. 2974-2983 ◽  
Author(s):  
Dong Wang ◽  
Weiwei Zhou ◽  
Rui Zhang ◽  
Xiaoxiao Huang ◽  
Jinjue Zeng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
High Performance ◽  
Mixed Oxides ◽  
Lithium Ion ◽  
Ion Storage ◽  
Mn Oxides ◽  
Storage Properties

A new hollow yet hierarchical MOF structure is developed to construct robust Zn–Mn oxides@carbon hybrids with excellent lithium-ion storage properties.

Synergistic effects from graphene oxide nanosheets and TiO2 hierarchical structures enable robust and resilient electrodes for high-performance lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 4321-4328 ◽  
Author(s):  
Xing Li ◽  
Chunmei Zhang ◽  
Tao Meng
Keyword(s):  
Graphene Oxide ◽  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
High Performance ◽  
Synergistic Effects ◽  
Hierarchical Structures ◽  
Lithium Ion ◽  
Graphene Oxide Nanosheets ◽  
Ion Storage

A strong synergistic effect from TiO2 hierarchical structure and GO is demonstrated for morphology control and enhanced lithium ion storage.

scholarly journals Selective Phosphorization Boosting High-Performance NiO/Ni2Co4P3 Microspheres as Anode Materials for Lithium Ion Batteries

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 24
Author(s):  
Ji Yan ◽  
Xin-Bo Chang ◽  
Xiao-Kai Ma ◽  
Heng Wang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Ion Storage ◽  
Storage Behavior ◽  
Storage Properties

Phosphorization of metal oxides/hydoxides to promote electronic conductivity as a promising strategy has attracted enormous attention for improving the electrochemical properties of anode material in lithium ion batteries. For this article, selective phosphorization from NiCo2O4 to NiO/Ni2Co4P3 microspheres was realized as an efficient route to enhance the electrochemical lithium storage properties of bimetal Ni-Co based anode materials. The results show that varying phosphorizaed reagent amount can significantly affect the transformation of crystalline structure from NiCo2O4 to intermediate NiO, hybrid NiO/Ni2Co4P3, and, finally, to Ni2Co4P3, during which alterated sphere morphology, shifted surface valance, and enhanced lithium-ion storage behavior are detected. The optimized phosphorization with 1:3 reagent mass ratio can maintain the spherical architecture, hold hybrid crystal structure, and improve the reversibly electrochemical lithium-ion storage properties. A specific capacity of 415 mAh g−1 is achieved at 100 mA g−1 specific current and maintains at 106 mAh g−1 when the specific current increases to 5000 mA g−1. Even after 200 cycles at 500 mA g−1, the optimized electrode still delivers 224 mAh g−1 of specific capacity, exhibiting desirable cycling stability. We believe that understanding of such selective phosphorization can further evoke a particular research enthusiasm for anode materials in lithium ion battery with high performances.

Hybrid graphene@MoS2@TiO2 microspheres for use as a high performance negative electrode material for lithium ion batteries

2017 ◽  
Vol 5 (7) ◽  
pp. 3667-3674 ◽  
Author(s):  
Qiang Pang ◽  
Yingying Zhao ◽  
Xiaofei Bian ◽  
Yanming Ju ◽  
Xudong Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Graphene Layer ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Ion Storage ◽  
Li Ion ◽  
Tio2 Microspheres ◽  
Negative Electrode Material ◽  
Storage Properties

MoS2 nanosheets were impregnated into mesoporous TiO2 and encapsulated by a graphene layer resulting in excellent Li ion storage properties.

scholarly journals Preparation of cobalt sulfide@reduced graphene oxide nanocomposites with outstanding electrochemical behavior for lithium-ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13543-13551 ◽  
Author(s):  
Junhai Wang ◽  
Yongxing Zhang ◽  
Jun Wang ◽  
Lvlv Gao ◽  
Zinan Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Electrochemical Behavior ◽  
Hydrothermal Process ◽  
Lithium Ion ◽  
Cobalt Sulfide ◽  
Reduced Graphene ◽  
Ion Storage ◽  
Storage Properties

Cobalt sulfide@reduced graphene oxide nanocomposites obtained through a dipping and hydrothermal process, exhibit ascendant lithium-ion storage properties.

3D graphene network encapsulating SnO2 hollow spheres as a high-performance anode material for lithium-ion batteries

2017 ◽  
Vol 5 (9) ◽  
pp. 4535-4542 ◽  
Author(s):  
Xiang Hu ◽  
Guang Zeng ◽  
Junxiang Chen ◽  
Canzhong Lu ◽  
Zhenhai Wen
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Lithium Storage ◽  
3D Graphene ◽  
Storage Properties

H-SnO2@rGO with interconnected graphene encapsulating interior hollow SnO2 nanospheres is designed and fabricated, which shows outstanding lithium storage properties.

Two fully conjugated covalent organic frameworks as anode materials for lithium ion batteries

2016 ◽  
Vol 4 (37) ◽  
pp. 14106-14110 ◽  
Author(s):  
Linyi Bai ◽  
Qiang Gao ◽  
Yanli Zhao
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
High Potential ◽  
Covalent Organic Frameworks ◽  
Ion Storage ◽  
Li Ion

Two fully conjugated covalent organic frameworks present high performance for both gas capture and Li ion storage, confirming their high potential in future Li–gas battery applications.

scholarly journals Silicon/graphene/carbon hierarchical structure nanofibers for high performance lithium ion batteries

2017 ◽  
Vol 200 ◽  
pp. 128-131 ◽  
Author(s):  
Zhenjiang He ◽  
Xianwen Wu ◽  
Zhaojun Yi ◽  
Xinyu Wang ◽  
Yanhong Xiang
Keyword(s):  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
High Performance ◽  
Lithium Ion

Synthesis of Nitrogen and Phosphorus Dual-Doped Graphene Oxide as High-Performance Anode Material for Lithium-Ion Batteries

2020 ◽  
Vol 20 (12) ◽  
pp. 7673-7679
Author(s):  
Ke Wang ◽  
Zhi Li
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Nitrogen And Phosphorus ◽  
Xrd Pattern ◽  
Ion Storage ◽  
Doped Graphene

Nitrogen and phosphorus dual-doped graphene oxide was prepared by directly calcining a mixture of pure graphene oxide, urea (nitrogen source), and 1,2-bis(diphenylphosphino)methane (phosphorous source). The morphology and composition of the obtained dual-doped graphene oxide were confirmed by SEM, TEM, XRD pattern, Raman spectrum, and XPS. The nitrogen and phosphorous dual-doped graphene oxide was tested as an anode material of lithium-ion batteries (LIBs). The cycle and rate performance of the dual-doped graphene oxide were also examined. The dualdoped graphene oxide exhibited a superior initial discharge capacity of 2796 mAh·g−1 and excellent reversible capacity of 1200 mAh·g−1 at a current density of 100 mA·g−1 after 200 charge/discharge cycles, suggesting that the dual-doping of nitrogen and phosphorous is an effective way to enhance lithium-ion storage for graphene oxide.

One-step electrolytic preparation of Si–Fe alloys as anodes for lithium ion batteries

2016 ◽  
Vol 09 (03) ◽  
pp. 1650050 ◽  
Author(s):  
Hailong Wang ◽  
Diankun Sun ◽  
Qiqi Song ◽  
Wenqi Xie ◽  
Xu Jiang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Mixed Oxides ◽  
Reduction Rate ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Alloy Particles ◽  
One Step ◽  
Electrolytic Preparation ◽  
Promising Application

One-step electrolytic formation of uniform crystalline Si–Fe alloy particles was successfully demonstrated in direct electro-reduction of solid mixed oxides of SiO2 and Fe2O3 in molten CaCl2 at 900[Formula: see text]C. Upon constant voltage electrolysis of solid mixed oxides at 2.8[Formula: see text]V between solid oxide cathode and graphite anode for 5[Formula: see text]h, electrolytic Si–Fe with the same Si/Fe stoichimetry of the precursory oxides was generated. The firstly generated Fe could function as depolarizers to enhance reduction rate of SiO2, resulting in the enhanced reduction kinetics to the electrolysis of individual SiO2. When evaluated as anode for lithium ion batteries, the prepared SiFe electrode showed a reversible lithium storage capacity as high as 470[Formula: see text]mAh g[Formula: see text] after 100 cycles at 200[Formula: see text]mA g[Formula: see text], promising application in high-performance lithium ion batteries.

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