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| 1 | Surface-Engineered Li4Ti5O12 Nanostructures for High-Power Li-Ion Batteries显示文摘Materials with high-power charge–discharge capabilities are of interest to overcome the power limitations of conventional Li-ion batteries.In this study,a unique solvothermal synthesis of Li4Ti5O12 nanoparticles is proposed by using an off-stoichiometric precursor ratio.A Li-deficient off-stoichiometry leads to the coexistence of phaseseparated crystalline nanoparticles of Li4Ti5O12 and TiO2 exhibiting reasonable high-rate performances.However,after the solvothermal process,an extended aging of the hydrolyzed solution leads to the formation of a Li4Ti5O12 nanoplate-like structure with a self-assembled disordered surface layer without crystalline TiO2.The Li4Ti5O12 nanoplates with the disordered surface layer deliver ultrahighrate performances for both charging and discharging in the range of 50–300C and reversible capacities of 156 and 113 mAh g−1 at these two rates,respectively.Furthermore,the electrode exhibits an ultrahigh-charging-rate capability up to 1200C(60 mAh g−1;discharge limited to 100C).Unlike previously reported high-rate half cells,we demonstrate a high-power Li-ion battery by coupling Li4Ti5O12 with a high-rate LiMn2O4 cathode.The full cell exhibits ultrafast charging/discharging for 140 and 12 s while retaining 97 and 66% of the anode theoretical capacity,respectively.Room-(25℃),low-(−10℃),and high-(55℃)temperature cycling data show the wide temperature operation range of the cell at a high rate of 100C. | Binitha Gangaja Shantikumar Nair Dhamodaran Santhanagopalan | 2020 | Nano-Micro Letters2020，12，2： | 2 |
| 2 | Analysis of internal short-circuit in a lithium ion cell 显示文摘 | Santhanagopalan S Ramadass P ZHANG Zhengming | 2009 | J Power Sources2009，194，： | 1 |
| 3 | Parameter estimation and model discrimination for a lithium-ion cell显示文摘 | Santhanagopalan Shriram Guo Qingzhi White Ralph E | 2007 | Journal of the Electrochemical Society2007，154，3： | 1 |
| 4 | Online estimation of the state of charge of a lithium ion cell 显示文摘 | SANTHANAGOPALAN S WHITE R E | 2006 | Journal of Power Sources2006，161，2： | 1 |
| 5 | Microstructure control of MnO2/CNT hybrids under in-situ hydrothermal conditions显示文摘 | TENG F SANTHANAGOPALAN S MENG D D | | 0，，： | 1 |
| 6 | Review of models for predicting the cycling per-formance of lithium ion batteries显示文摘 | SANTHANAGOPALAN S GUO Q RAMADASS P | 2006 | Journal of Power Sources2006，156，： | 1 |
| 7 | Online estimation of the state of charge of a lithium ion cell显示文摘 | Santhanagopalan S White R E | 2006 | Journal of Power Sources2006，161，2： | 1 |
| 8 | In situ STEM-EELS observation of nanoscale interracial phenomena in all-solid-state batteries显示文摘 | WANG Z Y SANTHANAGOPALAN D ZHANG W | 2016 | Nano Letters2016，16，6： | 1 |
| 9 | State of charge estimation using an unscented filter for high power lithium ion cells显示文摘 | Santhanagopalan S White R E | 2010 | International Journal of Energy Research2010，34，2： | 1 |
| 10 | State of charge estimation using an unscented filter for high power lithium ion cells 显示文摘 | SANTHANAGOPALAN S WHITE R E | 2010 | Inter- national Journal of Energy Research2010，34，2： | 1 |
| 11 | Quantifying Cell-to-Cell Variations in Lithium Ion Batteries显示文摘 | Shriram Santhanagopalan Ralph E. White Dong Shu | 2012 | International Journal of Electrochemistry2012，，： | 1 |
| 12 | Analysis of internal short-circuit in a lithium ion cell 显示文摘 | SANTHANAGOPALAN S RAMADASS P ZHANG J | 2009 | Journal of Power Sources2009，194，： | 1 |
| 13 | Conducting polymer PEDOT:PSS coated Co_(3)O_(4) nanoparticles as the anode for sodium-ion battery applications显示文摘Metal oxides are considered as potential anodes for sodium-ion batteries(SIBs).Nevertheless,they suffer from poor cycling and rate capability.Here,we investigate conductive polymer coating on Co_(3)O_(4)nanoparticles varying with different percentages.X-ray diffraction,electron microscopy and surface chemical analysis were adopted to analyze coated and uncoated Co_(3)O_(4)nanoparticles.Conducting polymer,poly(3,4-ethylene dioxythiophene)polystyrene sulfonate(PEDOT:PSS),has been utilized for coating.Improved specific capacity and rate capability for an optimal coating of 0.5 wt.%were observed.The 0.5 wt.%coated sample outperformed the uncoated one in terms of capacity,rate capability and coulombic efficiency.It delivered a reversible capacity of 561 mAh·g^(−1)at 100 mA·g^(−1)and maintained a capacity of 318 mAh·g^(−1)at a high rate of 1 A·g^(−1).Increasing the PEDOT:PSS coating percentage led to lower performance due to the thicker coating induced kinetic issues.Ex-situ analysis of the 0.5 wt.%coated sample after 100 cycles at 1 A·g^(−1)was characterized for performance correlation.Such a simple,cost-effective and wet-chemical approach has not been employed before for Co_(3)O_(4)as the SIB anode. | Kevin VARGHESE Dona Susan BAJI Shantikumar NAIR Dhamodaran SANTHANAGOPALAN | 2022 | Frontiers of Materials Science2022，16，2： | 1 |
| 14 | The- oretical analysis of stresses in a Lithium ion cell 显示文摘 | Renganathan S Sikha G Santhanagopalan S | 2010 | Journal of the Electrochemical Society2010，157，2： | 1 |
| 15 | State of Charge Estimation Using an Unscented Filter for High Power Lithium Ion Ceils 显示文摘 | Shriram SANTHANAGOPALAN Ralph-e WHITE | 2010 | International Journal of Energy Research2010，34，2： | 1 |
| 16 | State of charge estimation using an unscented filter for high power lithium ion cells显示文摘 | Santhanagopalan S White R E | | 0，，02： | 1 |
| 17 | Interface limited lithium transport in solid-state batteries显示文摘 | Santhanagopalan D Qian D McGilvray T | 2014 | Journal of Physical Chemistry Letters2014，5，2： | 1 |
| 18 | Online estimation of the state of charge of a lithium ion cell显示文摘 | SANTHANAGOPALAN S WHITE R E | 2006 | Journal of Power Sources2006，161，2： | 1 |
| 19 | Asalysis of internal short-circuit in a lithium ion cell 显示文摘 | SANTHANAGOPALAN S RAMADASS P ZHANG J | 2009 | Journal of Power Sources2009，194，1： | 1 |
| 20 | In situ growth of LiFePO 4 nanorod arrays under hydrothermal condition显示文摘 | Fei Teng Sunand Santhanagopalan Ryan Lemmens Xiaobao Geng Pragneshkumar Patel Dennis Desheng Meng | 2010 | Solid State Sciences2010，，5： | 1 |
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