scholarly journals Improved electrochemical performance of nitrogen doped TiO2-B nanowires as anode materials for Li-ion batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (28) ◽  
pp. 12215-12224 ◽  
Author(s):  
Yongquan Zhang ◽  
Qiang Fu ◽  
Qiaoling Xu ◽  
Xiao Yan ◽  
Rongyu Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
Anode Materials ◽  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Doped Tio2 ◽  
Nitrogen Doped ◽  
Li Ion

The substituted-N plays a key role in improving the conductivity and structural stability of TiO2-B. Thereout, the rate capability and cycling stability of the TiO2-B nanowires are significantly improved.

scholarly journals Directly Anodized Sulfur-Doped TiO2 Nanotubes as Improved Anodes for Li-ion Batteries

Batteries ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 51
Author(s):  
Davood Sabaghi ◽  
Mahmoud Madian ◽  
Ahmad Omar ◽  
Steffen Oswald ◽  
Margitta Uhlemann ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Discharge Capacity ◽  
Tio2 Nanotubes ◽  
Rate Capability ◽  
Pure Tio2 ◽  
Electrochemical Anodization ◽  
Li Ion Batteries ◽  
Doped Tio2 ◽  
Li Ion ◽  
Elemental Doping

TiO2 represents one of the promising anode materials for lithium ion batteries due to its high thermal and chemical stability, relatively high theoretical specific capacity and low cost. However, the electrochemical performance, particularly for mesoporous TiO2, is limited and must be further developed. Elemental doping is a viable route to enhance rate capability and discharge capacity of TiO2 anodes in Li-ion batteries. Usually, elemental doping requires elevated temperatures, which represents a challenge, particularly for sulfur as a dopant. In this work, S-doped TiO2 nanotubes were successfully synthesized in situ during the electrochemical anodization of a titanium substrate at room temperature. The electrochemical anodization bath represented an ethylene glycol-based solution containing NH4F along with Na2S2O5 as the sulfur source. The S-doped TiO2 anodes demonstrated a higher areal discharge capacity of 95 µAh·cm−2 at a current rate of 100 µA·cm−2 after 100 cycles, as compared to the pure TiO2 nanotubes (60 µAh·cm−2). S-TiO2 also exhibited a significantly improved rate capability up to 2500 µA·cm−2 as compared to undoped TiO2. The improved electrochemical performance, as compared to pure TiO2 nanotubes, is attributed to a lower impedance in S-doped TiO2 nanotubes (STNTs). Thus, the direct S-doping during the anodization process is a promising and cost-effective route towards improved TiO2 anodes for Li-ion batteries.

scholarly journals Core@shell Sb@Sb2O3 nanoparticles anchored on 3D nitrogen-doped carbon nanosheets as advanced anode materials for Li-ion batteries

2020 ◽  
Vol 2 (12) ◽  
pp. 5578-5583
Author(s):  
Xian Chen ◽  
Liang Wang ◽  
Feng Ma ◽  
Tanyuan Wang ◽  
Jiantao Han ◽  
...  
Keyword(s):  
Anode Materials ◽  
Rate Capability ◽  
Cycle Performance ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Li Ion ◽  
Nitrogen Doped Carbon

A nanocomposite of core@shell Sb@Sb2O3 particles anchored on 3D porous nitrogen-doped carbon nanosheets is synthesized and employed as a anode for Li-ion battery, demonstrating excellent rate capability and cycle performance.

Nanostructured anode materials for Li-ion batteries

2008 ◽  
Vol 80 (11) ◽  
pp. 2283-2295 ◽  
Author(s):  
Nahong Zhao ◽  
Lijun Fu ◽  
Lichun Yang ◽  
Tao Zhang ◽  
Gaojun Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Anode Materials ◽  
High Capacity ◽  
Rate Capability ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Cycling Behavior

This paper focuses on the latest progress in the preparation of a series of nanostructured anode materials in our laboratory and their electrochemical properties for Li-ion batteries. These anode materials include core-shell structured Si nanocomposites, TiO2 nanocomposites, novel MoO2 anode material, and carbon nanotube (CNT)-coated SnO2 nanowires (NWs). The substantial advantages of these nanostructured anodes provide greatly improved electrochemical performance including high capacity, better cycling behavior, and rate capability.

Ultra-uniform CuO/Cu in nitrogen-doped carbon nanofibers as a stable anode for Li-ion batteries

2016 ◽  
Vol 4 (27) ◽  
pp. 10585-10592 ◽  
Author(s):  
Hang Zhang ◽  
Guanhua Zhang ◽  
Zhiqin Li ◽  
Ke Qu ◽  
Lei Wang ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Anode Materials ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Nitrogen Doped ◽  
Li Ion ◽  
Nitrogen Doped Carbon

CuO/Cu ultra-uniformly dispersed in N-doped carbon nanofibers as anode materials for Li-ion batteries delivered excellent long-term cycling stability.

Ultrahigh rate capability and long cycling stability of dual-ion batteries enabled by TiO2 microspheres with abundant oxygen vacancies

2020 ◽  
Vol 56 (58) ◽  
pp. 8039-8042 ◽  
Author(s):  
Tong Mu ◽  
Jiguang Zhang ◽  
Rui Shi ◽  
Yunfeng Zhu ◽  
Jinglian Zhu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Oxygen Vacancies ◽  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Tio2 Microspheres

By introducing oxygen vacancies, TiO2 microspheres exhibit outstanding electrochemical performance for dual Mg/Li-ion batteries.

Enhanced Rate Capability and Cycling Stability of Novel Ammonium Vanadate Materials Used in Aqueous Li-Ion Batteries

2021 ◽  
Vol 35 (5) ◽  
pp. 4570-4576
Author(s):  
Najeeb ur Rehman Lashari ◽  
Mingshu Zhao ◽  
Qingyang Zheng ◽  
Xinhai He ◽  
Irfan Ahmed ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Ammonium Vanadate ◽  
Li Ion ◽  
Materials Used

3D hierarchical CuO mesocrystals from ionic liquid precursors: towards better electrochemical performance for Li-ion batteries

2016 ◽  
Vol 4 (21) ◽  
pp. 8402-8411 ◽  
Author(s):  
Xiaochuan Duan ◽  
Hui Huang ◽  
Songhua Xiao ◽  
Jiwei Deng ◽  
Gang Zhou ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Performance ◽  
Anode Materials ◽  
High Performance ◽  
Li Ion Batteries ◽  
Hydrothermal Conditions ◽  
Liquid Precursors ◽  
Li Ion ◽  
Facile Route

3D hierarchical CuO mesocrystals have been prepared from ionic liquid precursors under hydrothermal conditions, and exhibited superior electrochemical performance as anode materials, which offers a facile route for designing high-performance electrodes for Li-ion batteries.

Electrochemical performance of Si–CeMg12 composites as anode materials for Li-ion batteries

2009 ◽  
Vol 189 (1) ◽  
pp. 832-836 ◽  
Author(s):  
Z.W. Lu ◽  
G. Wang ◽  
X.P. Gao ◽  
X.J. Liu ◽  
J.Q. Wang
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Li Ion Batteries ◽  
Li Ion
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