Mesoporous TiO2 Spheres as Advanced Anodes for Low-Cost, Safe, and High-Areal-Capacity Lithium-Ion Full Batteries

2020 ◽  
Vol 3 (2) ◽  
pp. 1019-1027 ◽  
Author(s):  
Kunlei Zhu ◽  
Qian Li ◽  
Zhongmeng Xue ◽  
Qi Yu ◽  
Xicheng Liu ◽  
...  
Keyword(s):  
Low Cost ◽  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
Areal Capacity ◽  
Mesoporous Tio2 Spheres

scholarly journals Horizontally arranged zinc platelet electrodeposits modulated by fluorinated covalent organic framework film for high-rate and durable aqueous zinc ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zedong Zhao ◽  
Rong Wang ◽  
Chengxin Peng ◽  
Wuji Chen ◽  
Tianqi Wu ◽  
...  
Keyword(s):  
Low Cost ◽  
Protective Layer ◽  
Lithium Ion ◽  
Zinc Ion ◽  
High Rate ◽  
Covalent Organic Framework ◽  
Platelet Morphology ◽  
Areal Capacity ◽  
Intrinsic Safety ◽  
Organic Framework

AbstractRechargeable aqueous zinc-ion batteries (RZIBs) provide a promising complementarity to the existing lithium-ion batteries due to their low cost, non-toxicity and intrinsic safety. However, Zn anodes suffer from zinc dendrite growth and electrolyte corrosion, resulting in poor reversibility. Here, we develop an ultrathin, fluorinated two-dimensional porous covalent organic framework (FCOF) film as a protective layer on the Zn surface. The strong interaction between fluorine (F) in FCOF and Zn reduces the surface energy of the Zn (002) crystal plane, enabling the preferred growth of (002) planes during the electrodeposition process. As a result, Zn deposits show horizontally arranged platelet morphology with (002) orientations preferred. Furthermore, F-containing nanochannels facilitate ion transport and prevent electrolyte penetration for improving corrosion resistance. The FCOF@Zn symmetric cells achieve stability for over 750 h at an ultrahigh current density of 40 mA cm−2. The high-areal-capacity full cells demonstrate hundreds of cycles under high Zn utilization conditions.

Mesoporous TiO2 spheres with a nitridated conducting layer for lithium-ion batteries

2013 ◽  
Vol 48 (15) ◽  
pp. 5125-5131 ◽  
Author(s):  
Sukeun Yoon ◽  
Craig A. Bridges ◽  
Raymond R. Unocic ◽  
M. Parans Paranthaman
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
Conducting Layer ◽  
Mesoporous Tio2 Spheres

Novel mesoporous TiO2 spheres as anode material for high-performance lithium-ion batteries

2016 ◽  
Vol 181 ◽  
pp. 289-291 ◽  
Author(s):  
Jianqiang Guo ◽  
Jing Li ◽  
Yeju Huang ◽  
Min Zeng ◽  
Rufang Peng
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
Mesoporous Tio2 Spheres

scholarly journals Recent advances in the synthesis of hierarchically mesoporous TiO2 materials for energy and environmental applications

2020 ◽  
Vol 7 (11) ◽  
pp. 1702-1725 ◽  
Author(s):  
Wei Zhang ◽  
Yong Tian ◽  
Haili He ◽  
Li Xu ◽  
Wei Li ◽  
...  
Keyword(s):  
Low Cost ◽  
High Surface ◽  
Catalyst Support ◽  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
Key Factors ◽  
Future Directions ◽  
Surface Areas ◽  
Tio2 Nanomaterials ◽  
Multi Level

Abstract Because of their low cost, natural abundance, environmental benignity, plentiful polymorphs, good chemical stability and excellent optical properties, TiO2 materials are of great importance in the areas of physics, chemistry and material science. Much effort has been devoted to the synthesis of TiO2 nanomaterials for various applications. Among them, mesoporous TiO2 materials, especially with hierarchically porous structures, show great potential owing to their extraordinarily high surface areas, large pore volumes, tunable pore structures and morphologies, and nanoscale effects. This review aims to provide an overview of the synthesis and applications of hierarchically mesoporous TiO2 materials. In the first section, the general synthetic strategies for hierarchically mesoporous TiO2 materials are reviewed. After that, we summarize the architectures of hierarchically mesoporous TiO2 materials, including nanofibers, nanosheets, microparticles, films, spheres, core-shell and multi-level structures. At the same time, the corresponding mechanisms and the key factors for the controllable synthesis are highlighted. Following this, the applications of hierarchically mesoporous TiO2 materials in terms of energy storage and environmental protection, including photocatalytic degradation of pollutants, photocatalytic fuel generation, photoelectrochemical water splitting, catalyst support, lithium-ion batteries and sodium-ion batteries, are discussed. Finally, we outline the challenges and future directions of research and development in this area.

CuS2 sheets: a hidden anode material with a high capacity for sodium-ion batteries

2021 ◽  
Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Low Cost ◽  
High Capacity ◽  
Lithium Ion ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

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