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.

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.

Study on Li0.33La0.55TiO3 Solid Electrolyte with High Ionic Conductivity and Its Application in Flexible All Solid-State Battery

Nanoscale ◽  
2021 ◽  
Author(s):  
Feihu Tan ◽  
Hua An ◽  
Ning Li ◽  
Jun Du ◽  
Zhengchun Peng
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
High Ionic Conductivity ◽  
Energy Sources ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries

As flexible all-solid-state batteries are highly safe and lightweight, they can be considered as candidates for wearable energy sources. However, their performance needs to be first improved, which can be...

scholarly journals Investigations into the superionic glass phase of Li4PS4I for improving the stability of high-loading all-solid-state batteries

2020 ◽  
Vol 7 (20) ◽  
pp. 3953-3960
Author(s):  
Florian Strauss ◽  
Jun Hao Teo ◽  
Jürgen Janek ◽  
Torsten Brezesinski
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Glass Phase ◽  
High Loading ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
The Stability ◽  
Superionic Glass ◽  
Battery Cells

A glassy 1.5Li2S–0.5P2S5–LiI solid electrolyte enables stable cycling of high-loading all-solid-state battery cells with an NCM622 cathode and a LTO anode.

scholarly journals Single-step ball milling synthesis of highly Li+ conductive Li5.3PS4.3ClBr0.7 glass ceramic electrolyte enables low-impedance all-solid-state batteries

2021 ◽  
Author(s):  
Marvin Cronau ◽  
Marvin Szabo ◽  
Bernhard Roling
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Ball Milling ◽  
Glass Ceramic ◽  
Single Step ◽  
Ceramic Electrolyte ◽  
Conductive Glass ◽  
Solid State Battery ◽  
Solid State Batteries ◽  
All Solid State Batteries

Single-step ball milling synthesis of a highly conductive glass ceramic solid electrolyte enables a low-impedance all-solid-state battery.

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.

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.

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