scholarly journals Pressure effects on sulfide electrolytes for all solid-state batteries

2020 ◽  
Vol 8 (10) ◽  
pp. 5049-5055 ◽  
Author(s):  
Jean-Marie Doux ◽  
Yangyuchen Yang ◽  
Darren H. S. Tan ◽  
Han Nguyen ◽  
Erik A. Wu ◽  
...  
Keyword(s):  
Solid State ◽  
Electrode Materials ◽  
Pressure Effects ◽  
Solid State Batteries ◽  
All Solid State Batteries

All-solid-state batteries exhibit good performance even at low operating stack pressure when soft electrode materials are used.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Chemo-mechanical expansion of lithium electrode materials – on the route to mechanically optimized all-solid-state batteries

2018 ◽  
Vol 11 (8) ◽  
pp. 2142-2158 ◽  
Author(s):  
Raimund Koerver ◽  
Wenbo Zhang ◽  
Lea de Biasi ◽  
Simon Schweidler ◽  
Aleksandr O. Kondrakov ◽  
...  
Keyword(s):  
Solid State ◽  
Electrode Materials ◽  
Local Stress ◽  
Stress Development ◽  
Lithium Electrode ◽  
Particle Cracking ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
Rigid Environment

The volume effects of electrode materials can cause local stress development, contact loss and particle cracking in the rigid environment of a solid-state battery.

scholarly journals High Reversibility of “Soft” Electrode Materials in All-Solid-State Batteries

2016 ◽  
Vol 4 ◽  
Author(s):  
Atsushi Sakuda ◽  
Tomonari Takeuchi ◽  
Masahiro Shikano ◽  
Hikari Sakaebe ◽  
Hironori Kobayashi
Keyword(s):  
Solid State ◽  
Electrode Materials ◽  
Solid State Batteries ◽  
All Solid State Batteries

scholarly journals A reversible oxygen redox reaction in bulk-type all-solid-state batteries

2020 ◽  
Vol 6 (25) ◽  
pp. eaax7236 ◽  
Author(s):  
Kenji Nagao ◽  
Yuka Nagata ◽  
Atsushi Sakuda ◽  
Akitoshi Hayashi ◽  
Minako Deguchi ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Redox Reaction ◽  
Large Scale ◽  
Electrode Materials ◽  
Active Material ◽  
Lithium Ion ◽  
Stable Operation ◽  
Solid State Batteries ◽  
All Solid State Batteries

An all-solid-state lithium battery using inorganic solid electrolytes requires safety assurance and improved energy density, both of which are issues in large-scale applications of lithium-ion batteries. Utilization of high-capacity lithium-excess electrode materials is effective for the further increase in energy density. However, they have never been applied to all-solid-state batteries. Operational difficulty of all-solid-state batteries using them generally lies in the construction of the electrode-electrolyte interface. By the amorphization of Li2RuO3 as a lithium-excess model material with Li2SO4, here, we have first demonstrated a reversible oxygen redox reaction in all-solid-state batteries. Amorphous nature of the Li2RuO3-Li2SO4 matrix enables inclusion of active material with high conductivity and ductility for achieving favorable interfaces with charge transfer capabilities, leading to the stable operation of all-solid-state batteries.

Li2s-P2S5 Solutions for Forming Solid Electrolyte Coating Layers on Electrode Materials for All-Solid-State Batteries

2021 ◽  
Vol MA2021-02 (1) ◽  
pp. 136-136
Author(s):  
Marcela Calpa ◽  
Nataly Rosero-Navarro ◽  
Akira Miura ◽  
Kiyoharu Tadanaga
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Electrode Materials ◽  
Solid State Batteries ◽  
Coating Layers ◽  
All Solid State Batteries

Development of Solid Electrolytes for All-Solid-State Batteries

2019 ◽  
Vol 92 (11) ◽  
pp. 430-434
Author(s):  
Akitoshi HAYASHI ◽  
Atsushi SAKUDA ◽  
Masahiro TATSUMISAGO
Keyword(s):  
Solid State ◽  
Solid Electrolytes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Operando Visualization of Morphological Dynamics in All-Solid-State Batteries

2019 ◽  
Author(s):  
Xiaohan Wu ◽  
Juliette Billaud ◽  
Iwan Jerjen ◽  
Federica Marone ◽  
Yuya Ishihara ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolytes ◽  
Rational Design ◽  
Morphological Evolution ◽  
Active Material ◽  
Composite Layer ◽  
Transference Number ◽  
Thermal Stabilities ◽  
Solid State Batteries ◽  
All Solid State Batteries

<div> <div> <div> <p>All-solid-state batteries are considered as attractive options for next-generation energy storage owing to the favourable properties (unit transference number and thermal stabilities) of solid electrolytes. However, there are also serious concerns about mechanical deformation of solid electrolytes leading to the degradation of the battery performance. Therefore, understanding the mechanism underlying the electro-mechanical properties in SSBs are essentially important. Here, we show three-dimensional and time-resolved measurements of an all-solid-state cell using synchrotron radiation x-ray tomographic microscopy. We could clearly observe the gradient of the electrochemical reaction and the morphological evolution in the composite layer. Volume expansion/compression of the active material (Sn) was strongly oriented along the thickness of the electrode. While this results in significant deformation (cracking) in the solid electrolyte region, we also find organized cracking patterns depending on the particle size and their arrangements. This study based on operando visualization therefore opens the door towards rational design of particles and electrode morphology for all-solid-state batteries. </p> </div> </div> </div>

scholarly journals Structural Investigation of NCM-Cathode-LLZO-Electrolyte Composites as Promising Candidates for All-Solid-State Batteries Using (Cryo) STEM and PED

2021 ◽  
Vol 27 (S1) ◽  
pp. 1978-1979
Author(s):  
Thomas Demuth ◽  
Till Fuchs ◽  
Anuj Pokle ◽  
Andreas Beyer ◽  
Jürgen Janek ◽  
...  
Keyword(s):  
Solid State ◽  
Structural Investigation ◽  
Solid State Batteries ◽  
All Solid State Batteries
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