In Situ Measurement of Lithium-Ion Cell Internal Temperatures during Extreme Fast Charging

2019 ◽  
Vol 166 (14) ◽  
pp. A3254-A3259 ◽  
Author(s):  
Shan Huang ◽  
Xianyang Wu ◽  
Gabriel M. Cavalheiro ◽  
Xiaoniu Du ◽  
Bangzhi Liu ◽  
...  
Keyword(s):  
Lithium Ion ◽  
In Situ Measurement ◽  
Lithium Ion Cell ◽  
Fast Charging

Simultaneous In Situ Neutron Diffraction Studies of the Anode and Cathode in a Lithium-Ion Cell

2004 ◽  
Vol 7 (1) ◽  
pp. A8 ◽  
Author(s):  
Mark A. Rodriguez ◽  
David Ingersoll ◽  
Sven C. Vogel ◽  
Darrick J. Williams
Keyword(s):  
Neutron Diffraction ◽  
Lithium Ion ◽  
Lithium Ion Cell ◽  
In Situ Neutron Diffraction

scholarly journals Novel In Situ Gas Formation Analysis Technique Using a Multilayer Pouch Bag Lithium Ion Cell Equipped with Gas Sampling Port

2020 ◽  
Vol 167 (6) ◽  
pp. 060516 ◽  
Author(s):  
Jan-Patrick Schmiegel ◽  
Marco Leißing ◽  
Franz Weddeling ◽  
Fabian Horsthemke ◽  
Jakub Reiter ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Gas Sampling ◽  
Gas Formation ◽  
Lithium Ion Cell ◽  
Analysis Technique

Fast and Extensive Intercalation Chemistry in Wadsley-Roth Phase Based High-Capacity Electrodes

2020 ◽  
Author(s):  
Miao Wang ◽  
Zhenpeng Yao ◽  
Qianqian Li ◽  
Yongfeng Hu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Ex Situ ◽  
Fast Diffusion ◽  
Fast Kinetics ◽  
Fast Charging ◽  
Depth Study ◽  
Insertion Sites

<p>Wadsley-Roth (W-R) structured oxides featured with wide channels represent one of the most promising material families showing compelling rate performance for lithium ion batteries. But the structural origin for the fast kinetics of W-R structures is not well understood. Herein, we report an in-depth study on the fast and extensive intercalation chemistry of phosphorus stabilized W-R phase PNb<sub>9</sub>O<sub>25 </sub>and its application in high energy and fast-charging devices. We explore the intercalation geometry of PNb<sub>9</sub>O<sub>25</sub> and identify two geometrical types of stable insertion sites with the total amount (2.22 per Nb ion) much higher than conventional intercalation-type electrodes. We reveal the ion transportation kinetics that the Li ions initially diffuse along the open type III channels and then penetrate to type-α edge sites with low kinetic barriers. Through <i>in-situ</i> TEM and <i>ex-situ</i> XRD investigations, we confirm that the whole intercalation/deintercalation process proceeds <i>via</i> a solid-solution behavior with continuous lithium (de)occupying/(re)ordering on the identified insertion sites exhibiting nearly “zero-stress” characteristics. Therefore, the oxide framework of PNb<sub>9</sub>O<sub>25</sub> keeps almost intact with all the fast diffusion channels and insertion cavities well-maintained upon cycling, which accomplishes the unconventional electrochemical performance of<sub> </sub>W-R structured electrodes.</p>

Insights from Lithium Stripping Dynamics on Fast Charging

2022 ◽  
Author(s):  
Sobana Perumaram Rangarajan ◽  
Partha P Mukherjee ◽  
Yevgen Barsukov ◽  
Conner Fear ◽  
Gayatri Dadheech ◽  
...  
Keyword(s):  
Graphite Electrode ◽  
Lithium Ion ◽  
Visualization Method ◽  
Physical Mechanisms ◽  
S Factor ◽  
Fast Charging ◽  
In Situ Visualization ◽  
Voltage Plateau ◽  
A Charge

Safe and reliable fast charging of lithium-ion batteries is contingent upon the development of facile methods of detection and quantification of lithium plating. Among the leading candidates for online lithium plating detection is analysis of the voltage plateau observed during the rest or discharge phase ensuing a charge. In this work, an operando metric, ‘S-factor,’ is developed from electrochemical data to quantitatively analyze the severity of lithium plating over a range of charge rates and temperatures. An in-situ visualization method is employed to study the physical mechanisms and phase transitions occurring at the graphite electrode during the voltage plateau.

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