Soft Chemical Dehydration Route to Carbon Coating of Metal Oxides:  Its Application for Spinel Lithium Manganate

2007 ◽  
Vol 111 (30) ◽  
pp. 11347-11352 ◽  
Author(s):  
Ah Reum Han ◽  
Tae Woo Kim ◽  
Dae Hoon Park ◽  
Seong-Ju Hwang ◽  
Jin-Ho Choy
Keyword(s):  
Metal Oxides ◽  
Carbon Coating ◽  
Lithium Manganate ◽  
Chemical Dehydration ◽  
Spinel Lithium Manganate

Building an artificial solid electrolyte interphase on spinel lithium manganate for high performance aqueous lithium-ion batteries

2020 ◽  
Vol 49 (24) ◽  
pp. 8136-8142
Author(s):  
Wujie Dong ◽  
Xieyi Huang ◽  
Yan Jin ◽  
Miao Xie ◽  
Wei Zhao ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Interphase Layer ◽  
Lithium Storage ◽  
Lithium Manganate ◽  
Spinel Lithium Manganate

An artificial solid electrolyte interphase layer using lithium polyacrylate on spinel LiMn2O4 enables fast and durable aqueous lithium storage.

scholarly journals High-performance carbon-coated mesoporous LiMn2O4 cathode materials synthesized from a novel hydrated layered-spinel lithium manganate composite

RSC Advances ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 3746-3751 ◽  
Author(s):  
Caihua Jiang ◽  
Zilong Tang ◽  
Shiqing Deng ◽  
Ye Hong ◽  
Shitong Wang ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Carbon Coated ◽  
Limn2o4 Cathode ◽  
Lithium Manganate ◽  
Spinel Lithium Manganate

High-performance carbon-coated mesoporous LiMn2O4 cathode materials have been synthesized from a novel hydrated layered-spinel lithium manganate composite.

scholarly journals Effectively suppressing dissolution of manganese from spinel lithium manganate via a nanoscale surface-doping approach

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Jun Lu ◽  
Chun Zhan ◽  
Tianpin Wu ◽  
Jianguo Wen ◽  
Yu Lei ◽  
...  
Keyword(s):  
Surface Doping ◽  
Lithium Manganate ◽  
Spinel Lithium Manganate

Study on Modified High Voltage (5V) Spinel Lithium Manganate Used for Energy Storage Lithium Titanate Batteries

2020 ◽  
Vol 310 ◽  
pp. 58-64
Author(s):  
Dan Wu ◽  
Wei Li ◽  
O. Tegus ◽  
Si Qin Bater
Keyword(s):  
Energy Storage ◽  
Cathode Material ◽  
High Voltage ◽  
Room Temperature ◽  
Lithium Titanate ◽  
Cycle Performance ◽  
Temperature Cycle ◽  
Charge Capacity ◽  
Lithium Manganate ◽  
Spinel Lithium Manganate

Solid electrolyte Li1.4Al0.4Ti1.6 (PO4)3 was used to coat high voltage (5V) spinel lithium manganate. The modified high voltage spinel lithium manganate was used as positive electrode and the lithium titanate as negative electrode. A type of 10Ah energy storage battery was assembled. Charge-discharge and cycle life tests of these batteries were carried out at different temperatures and rates. The results show that coating high voltage spinel lithium manganate improves the high temperature cycle performance of the lithium titanate batteries. The capacity retention ratio of the lithium titanate batteries with the coated high voltage lithium manganate as cathode material increases from 74.8% to 86.5% at 60°Cafter 2000 cycles compared to the lithium titanate batteries with the uncoated high voltage lithium manganite as cathode material. However, the cycle performance is not affected at-30 °C. The low temperature rate performance of lithium titanate batteries is improved by coating high voltage lithium manganate. When the discharge rate is 20 C at-30°C, 90.6% of the 1 C charge capacity at room temperature of the lithium titanate battery with the coated high voltage lithium manganate as cathode materialcan be delivered, while the lithium titanate battery with the un-coated high voltage lithium manganate as cathode material can only deliver 80.2% of the 1 C charge capacity at room temperature.

Preparation of Nanosized Spinel Lithium Manganate by an Integrated Technique of High-Gravity Technology and Microwave Technology

2013 ◽  
Vol 716 ◽  
pp. 109-112 ◽  
Author(s):  
Xin Wu Huang ◽  
Ji Cheng Zhou ◽  
Zhi Bai Xie ◽  
Jing Jing Liao ◽  
Si Wei Liu
Keyword(s):  
Electron Microscopy ◽  
Precipitation Method ◽  
High Gravity ◽  
X Ray Diffraction ◽  
Microwave Technology ◽  
Lithium Manganate ◽  
Integrated Technique ◽  
Co Precipitation ◽  
Average Size ◽  
Spinel Lithium Manganate

A novel synthesis of nanosized spinel LiMn2O4cathode has been developed by a combination of high-gravity technology and microwave technology. Spinel lithium manganate precursor were prepared by co-precipitation method in a rotating bed with helix channels (RBHC). Calcination of the precursor in the microwave field produces uniformly sized, nanoparticles of spinel LiMn2O4as the final product. The phase structures and morphologies were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM), transform electron microscopy (TEM). The results show that nanosized spinel LiMn2O4powders with high crystallinity, uniform particle size, and the average size of about 60 nm can be synthesized by the integration of high-gravity technology and microwave technology.

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