Water-Soluble Sericin Protein Enabling Stable Solid-Electrolyte Interphase for Fast Charging High Voltage Battery Electrode

2017 ◽  
Vol 29 (33) ◽  
pp. 1701828 ◽  
Author(s):  
Yuxin Tang ◽  
Jiyang Deng ◽  
Wenlong Li ◽  
Oleksandr I. Malyi ◽  
Yanyan Zhang ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
High Voltage ◽  
Solid Electrolyte Interphase ◽  
Water Soluble ◽  
Fast Charging ◽  
Battery Electrode ◽  
High Voltage Battery

Formation, dynamics, and implication of solid electrolyte interphase in high voltage reversible conversion fluoride nanocomposites

2010 ◽  
Vol 20 (20) ◽  
pp. 4149 ◽  
Author(s):  
Andrew J. Gmitter ◽  
Fadwa Badway ◽  
Sylvie Rangan ◽  
Robert A. Bartynski ◽  
Anna Halajko ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
High Voltage ◽  
Solid Electrolyte Interphase ◽  
Formation Dynamics

scholarly journals Quantification of Inactive Lithium and Solid Electrolyte Interphase (SEI) Species on Graphite Electrodes After Fast Charging

2020 ◽  
Author(s):  
Eric McShane ◽  
Andrew Colclasure ◽  
David Brown ◽  
Zachary M. Konz ◽  
Kandler Smith ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Particle Surface ◽  
Graphite Electrodes ◽  
Capacity Loss ◽  
Process Understanding ◽  
Fast Charging ◽  
Graphite Anodes ◽  
Carbonate Species ◽  
Stripping Efficiency

<p>Rapid charging of Li-ion batteries is limited by lithium plating on graphite anodes, whereby Li<sup>+</sup> ions are reduced to Li metal on the graphite particle surface instead of inserting between graphitic layers. Plated Li metal not only poses a safety risk due to dendrite formation, but also contributes to capacity loss due to the low reversibility of the Li plating/stripping process. Understanding when Li plating occurs and how much Li has plated is therefore vital to remedying these issues. We demonstrate a titration technique with a minimum detection limit of 20 nmol (5×10<sup>-4</sup> mAh) Li which is used to quantify inactive Li that remains on the graphite electrode after fast charging. Additionally, the titration is extended to quantify the total amount of solid carbonate species and lithium acetylide (Li<sub>2</sub>C<sub>2</sub>) within the solid electrolyte interphase (SEI). Finally, electrochemical modeling is combined with experimental data to determine the Li plating exchange current density (10 A/m<sup>2</sup>) and stripping efficiency (65%) of plated Li metal on graphite. These techniques provide a highly accurate measure of Li plating onset and quantitative insight into graphite SEI evolution during fast charge.</p>

scholarly journals Salt-rich solid electrolyte interphase for safer high-energy-density Li metal batteries with limited Li excess

2020 ◽  
Vol 56 (59) ◽  
pp. 8257-8260
Author(s):  
Shouyi Yuan ◽  
Junwei Lucas Bao ◽  
Nan Wang ◽  
Xiang Zhang ◽  
Yonggang Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Solid Electrolyte ◽  
High Voltage ◽  
Solid Electrolyte Interphase ◽  
High Energy ◽  
High Energy Density

An optimized carbonate-based electrolyte is proposed for Li metal batteries with a high-voltage cathode and limited Li metal.

scholarly journals Photochemically driven solid electrolyte interphase for extremely fast-charging lithium-ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Minsung Baek ◽  
Jinyoung Kim ◽  
Jaegyu Jin ◽  
Jang Wook Choi
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Battery Cell ◽  
Charging Infrastructure ◽  
Sei Layer ◽  
Fast Charging ◽  
Γ Ray ◽  
Battery Technology ◽  
Two Parameters

AbstractExtremely fast charging (i.e. 80% of storage capacity within 15 min) is a pressing requirement for current lithium-ion battery technology and also affects the planning of charging infrastructure. Accelerating lithium ion transport through the solid-electrolyte interphase (SEI) is a major obstacle in boosting charging rate; in turn, limited kinetics at the SEI layer negatively affect the cycle life and battery safety as a result of lithium metal plating on the electrode surface. Here, we report a γ-ray-driven SEI layer that allows a battery cell to be charged to 80% capacity in 10.8 min as determined for a graphite full-cell with a capacity of 2.6 mAh cm−2. This exceptional charging performance is attributed to the lithium fluoride-rich SEI induced by salt-dominant decomposition via γ-ray irradiation. This study highlights the potential of non-electrochemical approaches to adjust the SEI composition toward fast charging and long-term stability, two parameters that are difficult to improve simultaneously in typical electrochemical processes owing to the trade-off relation.

Highly Effective Solid Electrolyte Interphase-Forming Electrolyte Additive Enabling High Voltage Lithium-Ion Batteries

2017 ◽  
Vol 29 (18) ◽  
pp. 7733-7739 ◽  
Author(s):  
Stephan Röser ◽  
Andreas Lerchen ◽  
Lukas Ibing ◽  
Xia Cao ◽  
Johannes Kasnatscheew ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Electrolyte Additive ◽  
Highly Effective

scholarly journals Quantification of Inactive Lithium and Solid–Electrolyte Interphase Species on Graphite Electrodes after Fast Charging

2020 ◽  
Vol 5 (6) ◽  
pp. 2045-2051 ◽  
Author(s):  
Eric J. McShane ◽  
Andrew M. Colclasure ◽  
David E. Brown ◽  
Zachary M. Konz ◽  
Kandler Smith ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Graphite Electrodes ◽  
Fast Charging
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