LI4TI5O12 based anode materials for high power lithium ion batteries

... LI4TI5O12- BASED ANODE MATERIALS FOR HIGHPOWER LITHIUM- ION BATTERIES LIN CHUNFU (M Eng and B Eng., Tsinghua University) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... corresponding anode materials are still limited [1] Among various anode materials, LTO is believed to be a promising anode material for highpower LIBs 1.3 Overview of anode materials An ideal...

Ngày tải lên: 09/09/2015, 11:18

... PE -LiNi0. 5Mn1. 5O4, (b) PE -LiNi0. 4Ru0. 05Mn1. 5O4, (c) RF -LiNi0. 5Mn1. 5O4, (d) RF -LiNi0. 4Ru0. 05Mn1. 5O4, (e) PA -LiNi0. 5Mn1. 5O4 and (f) PA -LiNi0. 4Ru0. 05Mn1. 5O4 109 Fig 6.2 XRD results of (a) PE -LiNi0. 5Mn1. 5O4, ... PE -LiNi0. 5Mn1. 5O4, PE -LiNi0. 4Ru0. 05Mn1. 5O4, (b) RF -LiNi0. 5Mn1. 5O4, RF -LiNi0. 4Ru0. 05Mn1. 5O4, and (c) PA -LiNi0. 5Mn1. 5O4 and P...

Ngày tải lên: 10/09/2015, 15:52

... candidate for use in the electrodes of high- performance Li-ion batteries Abbreviations CuNFs@CoOx: copper nanofiber-networked cobalt oxide; CuNFs: copper nanofibers; CoOxTF: cobalt oxide thin-film; ... doi:10.1186/1556-276X-6-292 Cite this article as: Nam et al.: Copper nanofiber-networked cobalt oxide composites for high performance Li-ion batteries Nan...

Ngày tải lên: 21/06/2014, 04:20

... TOWARDS HIGH- ENERGY AND HIGH- POWER DENSITY LITHIUM- RICH CATHODE MATERIALS FOR FUTURE LITHIUM- ION BATTERIES: EXPLORING AND UNDERSTANDING MECHANISMS AND ROLE OF TRANSFORMATION SONG BOHANG ... density cathode materials for next-generation lithium ion batteries (LIB) is important and urgent because of high demand of long lasting...

Ngày tải lên: 10/09/2015, 09:28

... Thesis Spine CARBON AND TIN BASED NANOSTRUCTURED ANODE MATERIALS FOR LITHIUM ION BATTERIES DENG DA 2009 CARBON AND TIN BASED NANOSTRUCTURED ANODE MATERIALS FOR LITHIUM ION BATTERIES DENG DA ... Lithium Ion Batteries 2.1.2 Developments of Lithium Ion Batteries .11 2.2 Nanostructured Anode Materials 14 2.2.1 Carbonaceous Materials...

Ngày tải lên: 12/09/2015, 09:22

... [24], copyright 2001 2.6 Nanostructured Electrode Materials for Lithium- ion Batteries Since the performances of the lithium- ion batteries highly depend on their electrode materials, significant ... cathode and anode materials for rechargeable lithium -based cells Figure 2.6: Voltage versus capacity for some of the prospective cathode and anode materials for rec...

Ngày tải lên: 09/09/2015, 10:10

... Conclusions The sensing materials of WO loaded with wt.% metal oxides were prepared and applied for NH and NO detection, and several composition materials with good responses, both to NH and NO, were ... NO. , and fast response to NH and NO compared with pure WO The materials of WO loaded with wt.% Cr, La, Pr, Sm, Gd, Er, Tm and Yb showed good responses to N...

Ngày tải lên: 20/03/2014, 13:08

... cyclic voltammetry and galvanostatic cycling Furthermore, the high-rate performance and long-term cycle stability of Li4 Ti5O12 anodes for use in Li- ion batteries were discussed Introduction Li4 Ti5O12 ... the coupled diffusion coefficient for Li+ and e−), and better accommodation of the Li- ion insertion/extraction strain [8, 9] Figure shows the electrochemical activity...

Ngày tải lên: 20/06/2014, 23:20

... performance The present article provides a simple overview on the hollow nanostructured anode materials for Li-ion batteries, including carbon materials, metals, metal oxides, and their hybrid materials ... synthesis and application of hollow nanostructured anode materials used in Li-ion batteries based on carbon materials, metals, metal oxides, and their hybrid mat...

Ngày tải lên: 21/06/2014, 07:20

... timevarying CO -OFDM channels (S → R), (R → D) as well as the cascaded (S → R → D) channels We approach the channel estimation problem from a time-frequency point of view and employ the channel estimation ... almost the same estimation performance for −40 and 40 dB and obtain better results for GSR /GRD = dB as in the individual channel estimation case We show the BER per...

Ngày tải lên: 21/06/2014, 16:20

Ngày tải lên: 29/06/2014, 09:21

... a very suitable system for a high power supply In addition, lead–acid has a significant cost advantage Thus, there are numerous high-power applications where lead–acid batteries have been used ... optimizes grid structure for low electrical resistance Another way to improve the high-power performance is the use of copper as the negative grid material for lead–acid batterie...

Ngày tải lên: 05/07/2014, 20:21

... Measured and observed stator currents in stator coordinates www.intechopen.com (49) Genetic Algorithm Based Optimal PWM in High Power Synchronous Machines and Regulation of Observed Modulation Error ... distinct normalized Figure www.intechopen.com levels of -1, +1 for Genetic Algorithm Based Optimal PWM in High Power Synchronous Machines...

Ngày tải lên: 27/07/2014, 23:28

... in the performance improvement of phospho- olivine cathodes It aims to combine composition and structural modifications rationally to fabricate phospho- olivine cathodes with high energy, high rate ... (nanocrystallite aggregation, encapsulation of phosphoolivine in a porous carbon network) were used complementarily to increase the electrochemical performance of phospho- ol...

Ngày tải lên: 09/09/2015, 11:07

... But bridged- triphenylamine is not much explored in literature for making TPA materials Recently TPA properties of bridgedtriphenylamine based dendrimers are reported from our group But bridged triphenylamine ... the synthesis, characterization, properties and applications of cyclophane based and bridged triphenylamine based organic materials Based on the di...

Ngày tải lên: 10/09/2015, 08:24