Optimization of Cycling Performance for CNT Impregnated Sulfur Composite Cathode Using LiBH4 as Solid Electrolyte for All Solid State Li-S Batteries

2021 ◽  
Vol 104 (1) ◽  
pp. 53-60
Author(s):  
Balram Tripathi ◽  
Tarun Patodia ◽  
Ankur Jain ◽  
Takayuki Ichikawa ◽  
Ram Katiyar
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Composite Cathode ◽  
Cycling Performance

Optimization of Cycling Performance for CNT Impregnated Sulfur Composite Cathode Using LiBH4 as Solid Electrolyte for All Solid State Li-S Batteries

2021 ◽  
Vol MA2021-02 (1) ◽  
pp. 70-70
Author(s):  
Balram Tripathi ◽  
Tarun Patodia ◽  
Ankur Jain ◽  
Takayuki Ichikawa ◽  
Ram Katiyar
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Composite Cathode ◽  
Cycling Performance

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.

scholarly journals Stabilization of Li0.33La0.55TiO3 Solid Electrolyte Interphase Layer and Enhancement of Cycling Performance of LiNi0.5Co0.3Mn0.2O2 Battery Cathode with Buffer Layer

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 989
Author(s):  
Feihu Tan ◽  
Hua An ◽  
Ning Li ◽  
Jun Du ◽  
Zhengchun Peng
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Buffer Layer ◽  
Solid Electrolyte Interphase ◽  
Cycling Performance ◽  
Physical Contact ◽  
Initial State ◽  
Amorphous Sio2 ◽  
Current Output

All-solid-state batteries (ASSBs) are attractive for energy storage, mainly because introducing solid-state electrolytes significantly improves the battery performance in terms of safety, energy density, process compatibility, etc., compared with liquid electrolytes. However, the ionic conductivity of the solid-state electrolyte and the interface between the electrolyte and the electrode are two key factors that limit the performance of ASSBs. In this work, we investigated the structure of a Li0.33La0.55TiO3 (LLTO) thin-film solid electrolyte and the influence of different interfaces between LLTO electrolytes and electrodes on battery performance. The maximum ionic conductivity of the LLTO was 7.78 × 10−5 S/cm. Introducing a buffer layer could drastically improve the battery charging and discharging performance and cycle stability. Amorphous SiO2 allowed good physical contact with the electrode and the electrolyte, reduced the interface resistance, and improved the rate characteristics of the battery. The battery with the optimized interface could achieve 30C current output, and its capacity was 27.7% of the initial state after 1000 cycles. We achieved excellent performance and high stability by applying the dense amorphous SiO2 buffer layer, which indicates a promising strategy for the development of ASSBs.

scholarly journals Effect of surface carbonates on the cyclability of LiNbO3-coated NCM622 in all-solid-state batteries with lithium thiophosphate electrolytes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
A-Young Kim ◽  
Florian Strauss ◽  
Timo Bartsch ◽  
Jun Hao Teo ◽  
Jürgen Janek ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Sol Gel ◽  
Rate Capability ◽  
Cycling Performance ◽  
Side Reactions ◽  
Bulk Solid ◽  
Solid State Batteries ◽  
The Individual ◽  
Surface Carbonates

AbstractWhile still premature as an energy storage technology, bulk solid-state batteries are attracting much attention in the academic and industrial communities lately. In particular, layered lithium metal oxides and lithium thiophosphates hold promise as cathode materials and superionic solid electrolytes, respectively. However, interfacial side reactions between the individual components during battery operation usually result in accelerated performance degradation. Hence, effective surface coatings are required to mitigate or ideally prevent detrimental reactions from occurring and having an impact on the cyclability. In the present work, we examine how surface carbonates incorporated into the sol–gel-derived LiNbO3 protective coating on NCM622 [Li1+x(Ni0.6Co0.2Mn0.2)1–xO2] cathode material affect the efficiency and rate capability of pellet-stack solid-state battery cells with β-Li3PS4 or argyrodite Li6PS5Cl solid electrolyte and a Li4Ti5O12 anode. Our research data indicate that a hybrid coating may in fact be beneficial to the kinetics and the cycling performance strongly depends on the solid electrolyte used.

scholarly journals A stable cathode-solid electrolyte composite for high-voltage, long-cycle-life solid-state sodium-ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Erik A. Wu ◽  
Swastika Banerjee ◽  
Hanmei Tang ◽  
Peter M. Richardson ◽  
Jean-Marie Doux ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
Composite Cathode ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Great Promise ◽  
Sodium Ion Batteries ◽  
Ion Conductor ◽  
Oxide Cathodes

AbstractRechargeable solid-state sodium-ion batteries (SSSBs) hold great promise for safer and more energy-dense energy storage. However, the poor electrochemical stability between current sulfide-based solid electrolytes and high-voltage oxide cathodes has limited their long-term cycling performance and practicality. Here, we report the discovery of the ion conductor Na3-xY1-xZrxCl6 (NYZC) that is both electrochemically stable (up to 3.8 V vs. Na/Na+) and chemically compatible with oxide cathodes. Its high ionic conductivity of 6.6 × 10−5 S cm−1 at ambient temperature, several orders of magnitude higher than oxide coatings, is attributed to abundant Na vacancies and cooperative MCl6 rotation, resulting in an extremely low interfacial impedance. A SSSB comprising a NaCrO2 + NYZC composite cathode, Na3PS4 electrolyte, and Na-Sn anode exhibits an exceptional first-cycle Coulombic efficiency of 97.1% at room temperature and can cycle over 1000 cycles with 89.3% capacity retention at 40 °C. These findings highlight the immense potential of halides for SSSB applications.

scholarly journals A Stable Cathode-Solid Electrolyte Composite for Long-Cycle-Life, High Voltage Solid-State Sodium-ion Batteries

2020 ◽  
Author(s):  
Erik Wu ◽  
Swastika Banerjee ◽  
HANMEI TANG ◽  
Peter M. Richardson ◽  
Jean-Marie Doux ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
Composite Cathode ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Great Promise ◽  
Sodium Ion Batteries ◽  
Ion Conductor ◽  
Oxide Cathodes

<p>Rechargeable solid-state sodium-ion batteries (SSSBs) hold great promise for safer and more energy-dense energy storage. However, the poor electrochemical stability between current sulfide-based solid electrolytes and high-voltage oxide cathodes has limited their long-term cycling performance and practicality. Here, we report the discovery of Na<sub>3-<i>x</i></sub>Y<sub>1-<i>x</i></sub>Zr<i><sub>x</sub></i>Cl<sub>6</sub> (NYZC) as an ion conductor that is both electrochemically stable (up to 3.8 V vs. Na/Na<sup>+</sup>) and chemically compatible with oxide cathodes. Its high ionic conductivity of 6.6 x 10<sup>-5</sup> S cm<sup>-1</sup><sub> </sub>at ambient temperature, several orders of magnitude higher than oxide coatings, is attributed to abundant Na vacancies and cooperative MCl<sub>6</sub> rotation, resulting in an extremely low interfacial impedance. A SSSB comprising a NaCrO<sub>2</sub>+NYZC composite cathode, Na<sub>3</sub>PS<sub>4</sub> electrolyte, and Na-Sn anode exhibits an exceptional first-cycle Coulombic efficiency of 97.1% at room temperature and can cycle over 1000 cycles with 89.3% capacity retention at 40°C. These findings highlight the immense potential of halide ion conductors for SSSB applications.</p>

scholarly journals Reduced Sintering Temperatures of Li+ Conductive Li1.3Al0.3Ti1.7(PO4)3 Ceramics

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 408
Author(s):  
Katja Waetzig ◽  
Christian Heubner ◽  
Mihails Kusnezoff
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Cathode Material ◽  
Solid Electrolyte ◽  
Composite Cathode ◽  
Li Ion Batteries ◽  
Promising Candidate ◽  
Composite Cathodes ◽  
Solid State Batteries ◽  
Li Ion

All-solid-state batteries (ASSB) are considered promising candidates for future energy storage and advanced electric mobility. When compared to conventional Li-ion batteries, the substitution of Li-ion conductive, flammable liquids by a solid electrolyte and the application of Li-metal anodes substantially increase safety and energy density. The solid electrolyte Li1.3Al0.3Ti1.7(PO4)3 (LATP) provides high Li-ion conductivity of about 10−3 S/cm and is considered a highly promising candidate for both the solid electrolyte-separator and the ionically conductive part of the all-solid state composite cathode, consisting of the cathode material, the solid electrolyte, and an electron conductor. Co-sintering of the composite cathode is a sophisticated challenge, because temperatures above 1000 °C are typically required to achieve the maximum ionic conductivity of LATP but provoke reactions with the cathode material, inhibiting proper electrochemical functioning in the ASSB. In the present study, the application of sintering aids with different melting points and their impact on the sinterability and the conductivity of LATP were investigated by means of optical dilatometry and impedance spectroscopy. The microstructure of the samples was analyzed by SEM. The results indicate that the sintering temperature can be reduced below 800 °C while maintaining high ionic conductivity of up to 3.6 × 10−4 S/cm. These insights can be considered a crucial step forward towards enable LATP-based composite cathodes for future ASSB.

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