Ce 3+ -doped Li 4 Ti 5 O 12 with CeO 2 surface modification by a sol-gel method for high-performance lithium-ion batteries

2016 ◽  
Vol 189 ◽  
pp. 147-157 ◽  
Author(s):  
Qianyu Zhang ◽  
Yan Liu ◽  
Huansheng Lu ◽  
Daoping Tang ◽  
Chuying Ouyang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Sol Gel ◽  
Lithium Ion ◽  
Gel Method ◽  
Sol Gel Method

Surface modification of LiNi0.5Mn1.5O4 cathodes with ZnAl2O4 by a sol–gel method for lithium ion batteries

2014 ◽  
Vol 115 ◽  
pp. 326-331 ◽  
Author(s):  
Yongho Lee ◽  
Junyoung Mun ◽  
Dong-Won Kim ◽  
Joong Kee Lee ◽  
Wonchang Choi
Keyword(s):  
Surface Modification ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Gel Method ◽  
Sol Gel Method

SnO2 Nanoparticles for Lithium-Ion Batteries Prepared by Sol-Gel Method

2017 ◽  
Vol 727 ◽  
pp. 718-725 ◽  
Author(s):  
Xu Yan Liu ◽  
Yan Lin Han ◽  
Qiang Li ◽  
Deng Pan
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Discharge Rate ◽  
Sol Gel ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Storage ◽  
Gel Method ◽  
Sol Gel Method

Nanostructured SnO2 is an attractive anode material for high-energy-density lithium-ion batteries because of the fourfold higher theoretical charge capacity than commercially used graphite. However, the poor capacity retention at high rates and long-term cycling have intrinsically limited applications of nanostructured SnO2 anodes due to large polarization and ~300% volume change upon lithium insertion/extraction. Here we report the design of SnO2 nanoparticles, which are synthesized by sol-gel method, with an aim at overcome the above problems for the high-performance reversible lithium storage. The results showed that the mean sizes of SnO2 particles treated with 6 wt.% ammonia were less than 30 nm, which can store charge with a capacity density as high as ~1888 mAh/g. Even when the discharge rate was increased to 0.5 C, it still retained ~1017 mAh/g.

High performance (1 − x)LiMnPO4·xLi3V2(PO4)3/C composite cathode materials prepared by a sol–gel method

RSC Advances ◽  
2015 ◽  
Vol 5 (98) ◽  
pp. 80170-80175 ◽  
Author(s):  
Shanshan Li ◽  
Zhi Su ◽  
Xinyu Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Sol Gel ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Dimethyl Formamide ◽  
Gel Method ◽  
Sol Gel Method ◽  
Dispersing Agent

A series of (1 − x)LiMnPO4·xLi3V2(PO4)3/C (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1) composite nanoparticles are synthesized as cathode materials for lithium-ion batteries by the sol–gel method, using N,N-dimethyl formamide as a dispersing agent.

MgMoO4 as an anode material for lithium ion batteries and its multi-electron reaction mechanism

2022 ◽  
Author(s):  
He Duan ◽  
Zhiyong Zhou ◽  
Yanming Zhao ◽  
Youzhong Dong
Keyword(s):  
Reaction Mechanism ◽  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Single Phase ◽  
Sol Gel ◽  
Lithium Ion ◽  
Gel Method ◽  
Sol Gel Method ◽  
Magnesium Molybdate

Single-phase magnesium molybdate, MgMoO4, is successfully synthesized by a facile sol-gel method. Attributed to the multielectron reaction and the synergistic effect of the elements molybdenum (Mo) and magnesium (Mg), the...

The Influence of Different Carbon Sources on Li3V2(PO4)3/C Synthesized by a Hybrid Sol-Gel Method as Cathode for Lithium-Ion Batteries

2015 ◽  
Vol 3 (9) ◽  
pp. 955-960 ◽  
Author(s):  
Lingfang Li ◽  
Changling Fan ◽  
Xiaobing Huang ◽  
Xiang Zhang ◽  
Shaochang Han
Keyword(s):  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Carbon Sources ◽  
Lithium Ion ◽  
Gel Method ◽  
Sol Gel Method

High capacity Li2MnSiO4/C nanocomposite prepared by sol–gel method for lithium-ion batteries

2013 ◽  
Vol 232 ◽  
pp. 258-263 ◽  
Author(s):  
Shuangke Liu ◽  
Jing Xu ◽  
Dezhan Li ◽  
Yun Hu ◽  
Xiang Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Sol Gel ◽  
High Capacity ◽  
Lithium Ion ◽  
Gel Method ◽  
Sol Gel Method

Nano-Sized Lithium Manganese Phosphate/Carbon Nanotube Composites with Enhanced Electrochemical Activity for Lithium-Ion Batteries

2012 ◽  
Vol 1440 ◽  
Author(s):  
Satoru Tsumeda ◽  
Scott D. Korlann ◽  
Shunzo Suematsu ◽  
Kenji Tamamitsu
Keyword(s):  
Electron Microscope ◽  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Electrochemical Activity ◽  
Gel Method ◽  
Sol Gel Method ◽  
Manganese Phosphate ◽  
Lithium Manganese Phosphate

ABSTRACTOlivine lithium manganese phosphate, LiMnPO4 is a promising cathode material for high energy and safe lithium ion batteries. However, LiMnPO4 possesses excessively poor electrochemical activity, compared to conventional cathode materials. To enhance the electrochemical activity, we have synthesized LiMnPO4/multi-walled carbon nanotube (MWCNT) composites by employing an in-situ sol-gel method. The LiMnPO4/MWCNT composites were investigated by utilizing X-ray diffraction, thermogravimetric analysis, scanning electron microscope, transmission electron microscope, and galvanostatic charge-discharge cycling. The LiMnPO4 showed a particle size of ca. 50 nm and capacity of 102 mAh/g at 0.1 C without C.V. charging mode. This study demonstrated that the electrochemical activity of LiMnPO4 was significantly affected by not only pH and the amount of a chelating agent but also unreacted Mn2+. This is the first report analyzing the existence and effects of unreacted Mn2+ in LiMnPO4 synthesized by a sol-gel method.

Synthesis and electrochemical performance of Li4Ti5O12/TiO2/C nanocrystallines for high-rate lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (91) ◽  
pp. 74774-74782 ◽  
Author(s):  
Wenjun Zhu ◽  
Hui Yang ◽  
Wenkui Zhang ◽  
Hui Huang ◽  
Xinyong Tao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
High Rate ◽  
Gel Method ◽  
Sol Gel Method ◽  
Subsequent Calcination ◽  
Nanocrystalline Composite ◽  
Calcination Treatment

A Li4Ti5O12/TiO2/carbon (Li4Ti5O12/TiO2/C) nanocrystalline composite has been successfully synthesized by a facile sol–gel method and subsequent calcination treatment.

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