Novel method to enhance the cycling performance of spinel LiMn2O4

Xifei Li; Youlong Xu

doi:10.1016/j.elecom.2007.05.034

Enhanced cycling performance of spinel LiMn2O4 coated with ZnMn2O4 shell

Journal of Solid State Electrochemistry ◽

10.1007/s10008-007-0501-3 ◽

2008 ◽

Vol 12 (7-8) ◽

pp. 1037-1037

Author(s):

Xifei Li ◽

Youlong Xu ◽

Jie Wang ◽

Xianfeng Du

Keyword(s):

Cycling Performance ◽

Spinel Limn2o4

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Ultrasonic spray pyrolysis of nano crystalline spinel LiMn2O4 showing good cycling performance in the 3V range

Electrochimica Acta ◽

10.1016/j.electacta.2005.11.027 ◽

2006 ◽

Vol 51 (19) ◽

pp. 4089-4095 ◽

Cited By ~ 24

Author(s):

Sang-Ho Park ◽

Seung-Taek Myung ◽

Sung-Woo Oh ◽

Chong Seung Yoon ◽

Yang-Kook Sun

Keyword(s):

Spray Pyrolysis ◽

Ultrasonic Spray Pyrolysis ◽

Cycling Performance ◽

Spinel Limn2o4 ◽

Ultrasonic Spray ◽

Nano Crystalline

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Electrochemical Performance of Lithium Difluoro(Oxalate)Borate Synthesized by a Novel Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.197-198.1121 ◽

2011 ◽

Vol 197-198 ◽

pp. 1121-1124 ◽

Cited By ~ 5

Author(s):

Shi You Li ◽

Xiao Li Xu ◽

Xin Ming Shi ◽

Xiao Ling Cui

Keyword(s):

Solid Electrolyte Interphase ◽

Lithium Ion ◽

Cycling Performance ◽

Inert Atmosphere ◽

Capacity Retention ◽

Ethyl Methyl ◽

Ethyl Methyl Carbonate ◽

Novel Method ◽

Methyl Carbonate ◽

Continuous Technology

Lithium difluoro(oxalate)borate (LiODFB) as an alternative salt for lithium-ion batteries, its application was limited by salt synthesis. In this study, high purity LiODFB was synthesized by simple and continuous technology using purified self-made BF3, the inert atmosphere and vacuum protection was avoided. Moreover, 0.7 mol L-1LiODFB-PC (propylene carbonate)/EMC (ethyl methyl carbonate)/DMC (dimethyl carbonate) (1:1:1, by volume) were prepared to assembling Li/MCMB (mesocarbon microbead) cell. Solid Electrolyte Interphase (SEI) was formed to stabilized MCMB structure even in one third (by volume) of PC in the electrolyte with the help of LiODFB. LiFePO4/Li cell was assembled as well. The cell based on LiODFB had excellent cycling performance and capacity retention.

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Effect of electrolyte additives on high-temperature cycling performance of spinel LiMn2O4 cathode

Journal of Applied Electrochemistry ◽

10.1007/s10800-018-1244-9 ◽

2018 ◽

Vol 48 (11) ◽

pp. 1221-1230 ◽

Cited By ~ 6

Author(s):

Shuangcai Wang ◽

Huiping Hu ◽

Peifeng Yu ◽

Haiying Yang ◽

Xinhui Cai ◽

...

Keyword(s):

High Temperature ◽

Cycling Performance ◽

Temperature Cycling ◽

Spinel Limn2o4 ◽

Electrolyte Additives ◽

Limn2o4 Cathode

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Emulsion Detonation Synthesis (EDS): A Novel Method to Produce Nanostructured Spinel LiMn2O4 for Li-Ion Batteries

ECS Meeting Abstracts ◽

10.1149/ma2013-01/4/232 ◽

2013 ◽

Keyword(s):

Detonation Synthesis ◽

Li Ion Batteries ◽

Spinel Limn2o4 ◽

Novel Method ◽

Li Ion

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A novel method based on first principles to determine the accuracy and reliability of force measurements reported by bicycle power meters.

Journal Of Science & Cycling ◽

10.28985/jsc.v8i1.396 ◽

2019 ◽

Vol 8 (1) ◽

pp. 26-31

Author(s):

Ryan Worn ◽

Dan B Dwyer

Keyword(s):

Tangential Force ◽

Absolute Error ◽

Cycling Performance ◽

Radial Force ◽

Repeated Measurements ◽

Force Measurements ◽

Crank Angle ◽

Novel Method ◽

Applied Forces ◽

Left And Right

The accuracy and reliability of instrumented bicycle crank systems (i.e. power meters) is an important consideration for sport scientists who evaluate cycling performance and pedalling biomechanics. Many crank systems report power and or force/s on the left and right crank arms separately, or indexes of pedalling effectiveness, although crank systems that have genuinely independent force transducers on the left and right crank arms are rare. There is a need to be able to evaluate the accuracy and reliability of the measurements of power meters without the requirement for expensive and or complex instrumentation. The present study describes a relatively simple and novel method of assessing the accuracy and reliability of measures of crank angle, radial force and tangential force. The method is demonstrated in its application to an instrumented crank system (Axis Cranks ™). Reported crank forces were compared with actual applied forces to determine accuracy and some procedures used to assess the measurement of force were duplicated to determine reliability. The crank system measured crank angle with an average RMS error of 1.84 degrees across pedalling rates of 30-150 r/min. The absolute error of radial and tangential force measurements were 6% and 3.2% respectively (RMSE) and the relative error (accuracy of change in force) of radial and tangential force were 1.48% and 0.25% respectively (RMSE). Repeated measurements of force were found to be highly reliable (intra-class coefficient > 0.998). The method presented in this report could be used to evaluate the accuracy and reliability of other power meters and instrumented crank systems.

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