A New sp2–sp3-Hybridized Metallic Carbon Network for Lithium-Ion Battery Anode with Enhanced Safety and Lithium-Ion Diffusion Rate

2019 ◽  
Vol 123 (25) ◽  
pp. 15412-15418 ◽  
Author(s):  
Dong Fan ◽  
Andrey A. Golov ◽  
Artem A. Kabanov ◽  
Chengke Chen ◽  
Shaohua Lu ◽  
...  
2020 ◽  
Vol 2 (5) ◽  
pp. 2160-2169
Author(s):  
Clayton T. Kacica ◽  
Pratim Biswas

Synthesis of Cu-doped TiO2 nanostructures with excellent high-rate lithium-ion battery performance and enhanced lithium-ion diffusion.


2014 ◽  
Vol 16 (39) ◽  
pp. 21114-21118 ◽  
Author(s):  
Pooja M. Panchmatia ◽  
A. Robert Armstrong ◽  
Peter G. Bruce ◽  
M. Saiful Islam

Layered Li1+xV1−xO2 has attracted recent interest as a potential low voltage and high energy density anode material for lithium-ion batteries.


2019 ◽  
Vol 803 ◽  
pp. 527-537 ◽  
Author(s):  
Yining Zou ◽  
Zuoxing Guo ◽  
Lin Ye ◽  
Yuhuan Cui ◽  
Xia Wang ◽  
...  

2021 ◽  
Vol 1028 ◽  
pp. 138-143
Author(s):  
Iman Rahayu ◽  
Anggi Suprabawati ◽  
Vina M. Puspitasari ◽  
Sahrul Hidayat ◽  
Atiek Rostika Noviyanti

Lithium ion batteries with LiFePO4 cathode have become the focus of research because they are eco-friendly, stable, high average voltage (3.5 V), and high theoretical capacity (170 mAh/g). However, LiFePO4 has disadvantages such as low electrical conductivity (~10-9 S/cm) and low lithium ion diffusion coefficient (~10-14-10-15 cm2/s) that can inhibit its application as a lithium ion battery cathode material. To increase the electronic conductivity of LiFePO4, it can be done by adding carbon as a coating material, then doping gadolinium metal ions because it has a radius similar to Fe, and increasing sintering temperature. Optimizing the sintering temperature can control particle growth and research was study the sintering temperature of the electronic conductivity of LiFeGdPO4/C and obtain the optimum sintering temperature at LiFeGdPO4/C. The carbothermal reduction method used in synthesis, with a variation of sintering temperature of 800°C, 830°C, 850°C, 870°C, and 900°C using reagents LiH2PO4, Fe2O3, Gd2O3, and carbon black. Furthermore the samples were characterized using XRD, SEM-EDS, and four-point probes. The results of the study were expected to increase the conductivity of LiFePO4. The results show the effect of sintering temperature can increase the electronic conductivity of LiFeGdPO4/C. Samples with a sintering temperature 850°C have the highest conductivity among all temperature variations with a value of 1.11 × 10-5 S cm-1.


Nanoscale ◽  
2020 ◽  
Vol 12 (16) ◽  
pp. 8858-8866
Author(s):  
Qiwang Jiang ◽  
Jie Wang ◽  
Yan Jiang ◽  
Long Li ◽  
Xingzhong Cao ◽  
...  

Selenium vacancy-rich and carbon-free VSe2 nanosheets achieve excellent lithium storage performance due to significantly enhanced lithium-ion diffusion rate and electrochemical active sites induced by the Se vacancies.


2019 ◽  
Vol 225 ◽  
pp. 34-41 ◽  
Author(s):  
Navaratnarajah Kuganathan ◽  
Apostolos Kordatos ◽  
Sripathmanathan Anurakavan ◽  
Poobalasuntharam Iyngaran ◽  
Alexander Chroneos

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