Insights into capacity loss mechanisms of all-solid-state Li-ion batteries with Al anodes

2014 ◽  
Vol 2 (48) ◽  
pp. 20552-20559 ◽  
Author(s):  
Marina S. Leite ◽  
Dmitry Ruzmetov ◽  
Zhipeng Li ◽  
Leonid A. Bendersky ◽  
Norman C. Bartelt ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Li Ion Batteries ◽  
Capacity Loss ◽  
Time Scanning ◽  
Electrochemical Cycling ◽  
Solid State Batteries ◽  
Li Ion ◽  
Dynamic Degradation ◽  
Scanning Electron

The dynamic degradation of Al anodes in solid-state batteries is quantitatively measured by combining real-time scanning electron microscopy with electrochemical cycling.

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.

Effect of NaOH Concentration and the Addition of NiCl2 on the Preparation of Ni/NiO/C Composite Nanofibers

2014 ◽  
Vol 893 ◽  
pp. 136-140
Author(s):  
Wei Wei ◽  
Qing Rong Qian ◽  
Li Ren Xiao ◽  
Bao Quan Huang ◽  
Xin Ping Liu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Composite Nanofibers ◽  
Rate Capability ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
Key Factors ◽  
X Ray ◽  
Composite Nanofiber ◽  
Li Ion ◽  
Scanning Electron

Ni/NiO/C composite nanofiber with 60 nm in diameter was prepared by electrospinning and subsequent carbonization. The composition and morphology were characterized by X-ray diffraction and scanning electron microscopy. The electrochemical properties were preliminarily evaluated. It is found that both NaOH concentration and the addition of NiCl2 are key factors for the morphology of composite nanofibers. An electrochemical study reveals that the obtained Ni/NiO/C composite nanofiber exhibits excellent rate capability which makes it promising anode material for Li ion batteries. In addition, our simple and inexpensive stragegy can be further extended to create various functional hybrid nanomaterials.

scholarly journals NASICON LiM2(PO4)3 electrolyte (M = Zr) and electrode (M = Ti) materials for all solid-state Li-ion batteries with high total conductivity and low interfacial resistance

2018 ◽  
Vol 6 (13) ◽  
pp. 5296-5303 ◽  
Author(s):  
Hany El-Shinawi ◽  
Anna Regoutz ◽  
David J. Payne ◽  
Edmund J. Cussen ◽  
Serena A. Corr
Keyword(s):  
Solid State ◽  
Ionic Conductivities ◽  
Total Conductivity ◽  
Li Ion Batteries ◽  
Interfacial Resistance ◽  
Nasicon Type ◽  
Solid State Batteries ◽  
Li Ion ◽  
All Solid State Batteries

All solid-state batteries based on NASICON-type LiM2(PO4)3 electrolyte phases are highly promising owing to their high ionic conductivities and chemical stabilities.

scholarly journals Do imaging techniques add real value to the development of better post-Li-ion batteries?

2018 ◽  
Vol 6 (8) ◽  
pp. 3304-3327 ◽  
Author(s):  
Joanna Conder ◽  
Cyril Marino ◽  
Petr Novák ◽  
Claire Villevieille
Keyword(s):  
Solid State ◽  
Imaging Techniques ◽  
Li Ion Batteries ◽  
Recent Advances ◽  
Solid State Batteries ◽  
Real Value ◽  
Li Ion ◽  
All Solid State Batteries

Imaging techniques are increasingly used to study Li-ion batteries and, in particular, post-Li-ion batteries such as Li–S batteries, Na-ion batteries, Na–air batteries and all-solid-state batteries. Herein, we review recent advances in the field made through the use of these techniques.

scholarly journals Correlative electrochemical strain and scanning electron microscopy for local characterization of the solid state electrolyte Li1.3Al0.3Ti1.7(PO4)3

2018 ◽  
Vol 9 ◽  
pp. 1564-1572 ◽  
Author(s):  
Nino Schön ◽  
Deniz Cihan Gunduz ◽  
Shicheng Yu ◽  
Hermann Tempel ◽  
Roland Schierholz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Solid State ◽  
Electrochemical Impedance ◽  
Secondary Phase ◽  
Ion Conductivity ◽  
Correlative Microscopy ◽  
Li Ion ◽  
Solid State Electrolytes ◽  
Scanning Electron

Correlative microscopy has been used to investigate the relationship between Li-ion conductivity and the microstructure of lithium aluminum titanium phosphate (Li1.3Al0.3Ti1.7(PO4)3, LATP) with high spatial resolution. A key to improvement of solid state electrolytes such as LATP is a better understanding of interfacial and ion transport properties on relevant length scales in the nanometer to micrometer range. Using common techniques, such as electrochemical impedance spectroscopy, only global information can be obtained. In this work, we employ multiple microscopy techniques to gain local chemical and structural information paired with local insights into the Li-ion conductivity based on electrochemical strain microscopy (ESM). Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) have been applied at identical regions to identify microstructural components such as an AlPO4 secondary phase. We found significantly lower Li-ion mobility in the secondary phase areas as well as at grain boundaries. Additionally, various aspects of signal formation obtained from ESM for solid state electrolytes are discussed. We demonstrate that correlative microscopy is an adjuvant tool to gain local insights into interfacial properties of energy materials.

scholarly journals Facile Synthesis of Al-Stabilized Lithium Garnets by Solution-Combustion Technique for All Solid-State Batteries

2021 ◽  
Author(s):  
Pavan Badami ◽  
Stefan Smetaczek ◽  
Andreas Limbeck ◽  
Daniel Rettenwander ◽  
Candace K. Chan ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Li Ion Batteries ◽  
Solution Combustion ◽  
Solid State Batteries ◽  
Li Ion ◽  
Ceramic Electrolytes ◽  
Combustion Technique ◽  
Lithium Garnets

Solid-state lithium batteries (SSLBs) with ceramic electrolytes are proposed to result in improved energy density and safety compared to liquid electrolyte-based Li-ion batteries. Among the various inorganic ceramic electrolytes, Li7La3Zr2O12...

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