Highly Ordered TiO2 Microcones with High Rate Performance for Enhanced Lithium-Ion Storage

2016 ◽  
Vol 8 (23) ◽  
pp. 14558-14563 ◽  
Author(s):  
Oonhee Rhee ◽  
Gibaek Lee ◽  
Jinsub Choi
2017 ◽  
Vol 5 (25) ◽  
pp. 12828-12837 ◽  
Author(s):  
Xiaoshi Hu ◽  
Chao Li ◽  
Xiaobing Lou ◽  
Qi Yang ◽  
Bingwen Hu

Hierarchically structured porous CuO octahedron (HPCO): room-temperature transformation from a copper MOF and promotion of stable high capacity and high rate performance for lithium-ion batteries by pseudocapacitance.


NANO ◽  
2020 ◽  
Vol 15 (07) ◽  
pp. 2050095
Author(s):  
Nan Luo ◽  
Guoliang Chen ◽  
Yunfan Shang ◽  
Suyang Lu ◽  
Jun Mei ◽  
...  

Ti2[Formula: see text][Formula: see text] (TNO) is considered as a potential anode material due to its high capacity/power density and reliable safety. However, its poor electronic conductivity restricts its rate performance, which is important for its application in electric vehicles (EVs). In this study, we fabricated a hybrid of Ti2[Formula: see text][Formula: see text]/holey-reduced graphene oxide (TNOx/HRGO) by a two-step method. In the structure of TNOx/HRGO, TNOx microspheres with oxygen vacancies are wrapped by gossamer-like HRGO. The oxygen vacancies of TNOx and the high conductivity of HRGO can effectively enhance the electronic conductivity of the TNOx/HRGO hybrid, and the HRGO holes are beneficial for the transmission of lithium-ion ([Formula: see text]). The synergy effect of above features improves the rate performance of the TNOx/HRGO hybrid. In addition, the existence of HRGO can buffer volume expansion during the insertion processes of [Formula: see text], which can improve cyclic stability of the TNOx/HRGO hybrid. Consequently, the TNOx/HRGO electrode has excellent lithium-ion storage capacity, with high-rate performance (242[Formula: see text]mAh/g at 10∘C, 225[Formula: see text]mAh/g at 20∘C and 173[Formula: see text]mAh/g at 40∘C) and excellent cyclic stability (98.0% capacity retention after 300 cycles at 10∘C). This work reveals that TNOx/HRGO can be a potential anode material for high-rate-performance lithium-ion storage.


Nanoscale ◽  
2021 ◽  
Author(s):  
Wangyang Li ◽  
Liying Deng ◽  
Xinghui Wang ◽  
Jiaqi Cao ◽  
Yonghui Xie ◽  
...  

As a key factor for fast-charging lithium-ion batteries (LIBs), high-rate anode materials that can recharge in a few minutes have aroused increasing attention. However, high-rate performance is always accompanied by...


RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43551-43555 ◽  
Author(s):  
Mengmeng Zhen ◽  
Xiao Zhang ◽  
Lu Liu

Novel bi-component-active hierarchical ZnO/ZnCo2O4 nanosheets with mesostructures presented a good high-rate performance for lithium ion batteries.


2017 ◽  
Vol 52 (12) ◽  
pp. 7140-7148 ◽  
Author(s):  
Lijuan Wang ◽  
Xiaojie Wang ◽  
Zhaohui Meng ◽  
Hongjiang Hou ◽  
Baokuan Chen

2016 ◽  
Vol 4 (24) ◽  
pp. 9593-9599 ◽  
Author(s):  
Gaihua Li ◽  
Hao Yang ◽  
Fengcai Li ◽  
Jia Du ◽  
Wei Shi ◽  
...  

Utilizing the adsorption properties of MOFs, a nanostructured NiP2@C was successfully synthesized, which exhibited enhanced capability for lithium storage in terms of both the reversible specific capacity and high-rate performance.


2018 ◽  
Vol 212 ◽  
pp. 198-201 ◽  
Author(s):  
Xiaochuan Chen ◽  
Renpin Liu ◽  
Lingxing Zeng ◽  
Xiaoxia Huang ◽  
Yixing Fang ◽  
...  

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