Reaction of Li1.3Al0.3Ti1.7(PO4)3 and LiNi0.6Co0.2Mn0.2O2 in Co-Sintered Composite Cathodes for Solid-State Batteries

2021 ◽  
Author(s):  
Jean Philippe Beaupain ◽  
Katja Waetzig ◽  
Svenja-Katharina Otto ◽  
Anja Henss ◽  
Jürgen Janek ◽  
...  
Keyword(s):  
Solid State ◽  
Sintered Composite ◽  
Composite Cathodes ◽  
Solid State Batteries

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.

scholarly journals Editors’ Choice—Quantifying the Impact of Charge Transport Bottlenecks in Composite Cathodes of All-Solid-State Batteries

2021 ◽  
Vol 168 (4) ◽  
pp. 040537
Author(s):  
Philip Minnmann ◽  
Lars Quillman ◽  
Simon Burkhardt ◽  
Felix H. Richter ◽  
Jürgen Janek
Keyword(s):  
Solid State ◽  
Charge Transport ◽  
Composite Cathodes ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
The Impact

scholarly journals Multiscale Understanding of High-Energy Cathodes in Solid-State Batteries: from Atomic Scale to Macroscopic Scale

2021 ◽  
Author(s):  
Shuo Sun ◽  
Chen-Zi Zhao ◽  
Hong Yuan ◽  
Yang Lu ◽  
Jiang-Kui Hu ◽  
...  
Keyword(s):  
Solid State ◽  
Composite Cathode ◽  
High Energy ◽  
Atomic Scale ◽  
Basic Knowledge ◽  
Mechanical Degradation ◽  
Special Focus ◽  
Macroscopic Scale ◽  
Composite Cathodes ◽  
Solid State Batteries

Abstract In the crucial area of sustainable energy storage, solid-state batteries (SSBs) with nonflammable solid electrolytes stand out due to their potential benefits of enhanced safety, energy density, and cycle life. However, the complexity within the composite cathode determines that fabricating an ideal electrode needs to link chemistry (atomic scale), materials (microscopic/mesoscopic scale), and electrode system (macroscopic scale). Therefore, understiang solid-state composite cathodes covering multiple scales is of vital importance for the development of practical SSBs. In this review, the challenges and basic knowledge of composite cathodes from the atomic scale to the macroscopic scale in SSBs are outlined with a special focus on the interfacial structure, charge transport, and mechanical degradation. Based on these dilemmas, emerging strategies to design a high-performance composite cathode and advanced characterization techniques are summarized. Moreover, future perspectives toward composite cathodes are discussed, aiming to facilitate the develop energy-dense solid-state batteries.

scholarly journals Optimizing the Microstructure of Composite Cathodes in Garnet-Based All Solid-State Batteries By Continuum Modeling and Simulation

2021 ◽  
Vol MA2021-02 (3) ◽  
pp. 305-305
Author(s):  
Moritz Clausnitzer ◽  
Simon Hein ◽  
Robert Mücke ◽  
Martin Finsterbusch ◽  
Timo Danner ◽  
...  
Keyword(s):  
Solid State ◽  
Modeling And Simulation ◽  
Continuum Modeling ◽  
Composite Cathodes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Bulk-type all-solid-state batteries with mechanically prepared LiCoPO4 composite cathodes

2019 ◽  
Vol 23 (4) ◽  
pp. 1297-1302 ◽  
Author(s):  
Takahiro Kozawa ◽  
Akira Kondo ◽  
Kayo Fukuyama ◽  
Makio Naito ◽  
Hideyuki Koga ◽  
...  
Keyword(s):  
Solid State ◽  
Composite Cathodes ◽  
Solid State Batteries ◽  
All Solid State Batteries
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