Analysis of structural and thermal stability in the positive electrode for sulfide-based all-solid-state lithium batteries

Tsukasaki, Hirofumi; Otoyama, Misae; Mori, Yota; Mori, Shigeo; Morimoto, Hideyuki; Hayashi, Akitoshi; Tatsumisago, Masahiro

doi:10.1016/j.jpowsour.2017.09.031

Cited by 43 publications

(32 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Crystalline phases in the LPS glass was identified via a computer program called “ProcessDiffraction”, in which the ED patterns can be transformed into one dimensional intensity profile 14–17 . The sample preparation procedure for TEM observations is described in our previous paper 13 .…”

Section: Methodsmentioning

confidence: 99%

“…In our previous study, we fabricated the all-solid-state cell In/75Li 2 S·25P 2 S 5 glass (LPS)–LiNi 1/3 Mn 1/3 Co 1/3 O 2 (NMC). The cell maintained good cycle performance as well as a solid interfacial contact between NMC and LPS during 20 charge–discharge cycles 13 . In terms of the thermal stability of the NMC–LPS composites, an exothermal reaction was present at approximately 200 °C, which was attributed to the crystallization of the LPS glass.…”

Section: Introductionmentioning

confidence: 94%

“…In addition, the glass transition of the LPS glass in the NMC–LPS composites was accompanied by the morphological shrinkage of the sample. These properties implied that the interfacial contact between NMC and LPS influence the LPS crystallization behavior and the corresponding exothermal reaction 13 .…”

Section: Introductionmentioning

confidence: 95%

See 2 more Smart Citations

Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Tsukasaki

Mori

Otoyama

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

Sulfide-based all-solid-state lithium batteries are a next-generation power source composed of the inorganic solid electrolytes which are incombustible and have high ionic conductivity. Positive electrode composites comprising LiNi1/3Mn1/3Co1/3O2 (NMC) and 75Li2S·25P2S5 (LPS) glass electrolytes exhibit excellent charge–discharge cycle performance and are promising candidates for realizing all-solid-state batteries. The thermal stabilities of NMC–LPS composites have been investigated by transmission electron microscopy (TEM), which indicated that an exothermal reaction could be attributed to the crystallization of the LPS glass. To further understand the origin of the exothermic reaction, in this study, the precipitated crystalline phase of LPS glass in the NMC–LPS composite was examined. In situ TEM observations revealed that the β-Li3PS4 precipitated at approximately 200 °C, and then Li4P2S6 and Li2S precipitated at approximately 400 °C. Because the Li4P2S6 and Li2S crystalline phases do not precipitate in the single LPS glass, the interfacial contact between LPS and NMC has a significant influence on both the LPS crystallization behavior and the exothermal reaction in the NMC–LPS composites.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

See 1 more Smart Citation

Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Tsukasaki

Mori

Otoyama

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Tsukasaki et al [209,225,226] and Atarashi et al [211] reported the synthesis, solid-state battery fabrication, electrochemical cycling, and thermal stability study of bare and coated LiNi 1/3 Mn 1/3 Co 1/3 O 2 (NMC) and LPS electrolytes, and indicated that their reversible capacity after 50 cycles was approximately 80 mAh g −1 . Ex situ XRD [211] and in situ synchrotron XRD [227] measurements were performed to analyze the thermal stability of LNO-coated-NMC-LPS composites.…”

Section: Lithium Phosphorus Sulfide Electrolytementioning

confidence: 99%

“…Their research was followed by m imental studies on surface-coated NMC cathodes such as LNO, LPO, and Li2O-ZrO2, w aimed at reducing the cathode/electrolyte interfacial reactions during electrochemical cyc ther computational studies, such as that of Richards et al [224], who predicted the form Li3P and Li2S phases at on LPS/Li interface and the formation of Co(PO3)2, CoS2, and S, a 2/Li interface during electrochemical cycling, have been published. sukasaki et al [209,225,226] and Atarashi et al [211] reported the synthesis, solid-state ba ation, electrochemical cycling, and thermal stability study of bare and co /3Mn1/3Co1/3O2 (NMC) and LPS electrolytes, and indicated that their reversible capacity aft In 2019, Kim et al [204] studied the influence of the hybrid Li 2 CO 3 /LiNbO 3 coating on the surface of NMC622 cathode in solid-state cell using β-LPS as SSE. They characterized the surface coating well using transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy, high-angle annular dark-field scanning transmission electron microscopy, electron energy loss spectroscopy, inductively coupled plasma optical emission spectroscopy, XPS, differential electrochemical mass spectroscopy (DEMS), and infrared and impedance spectroscopy.…”

Section: Lithium Phosphorus Sulfide Electrolytementioning

confidence: 99%

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

et al. 2020

View full text Add to dashboard Cite

Energy storage materials are finding increasing applications in our daily lives, for devices such as mobile phones and electric vehicles. Current commercial batteries use flammable liquid electrolytes, which are unsafe, toxic, and environmentally unfriendly with low chemical stability. Recently, solid electrolytes have been extensively studied as alternative electrolytes to address these shortcomings. Herein, we report the early history, synthesis and characterization, mechanical properties, and Li+ ion transport mechanisms of inorganic sulfide and oxide electrolytes. Furthermore, we highlight the importance of the fabrication technology and experimental conditions, such as the effects of pressure and operating parameters, on the electrochemical performance of all-solid-state Li batteries. In particular, we emphasize promising electrolyte systems based on sulfides and argyrodites, such as LiPS5Cl and β-Li3PS4, oxide electrolytes, bare and doped Li7La3Zr2O12 garnet, NASICON-type structures, and perovskite electrolyte materials. Moreover, we discuss the present and future challenges that all-solid-state batteries face for large-scale industrial applications.

show abstract

Room‐Temperature Sintering of Amorphous Thiophosphate Solid Electrolyte (Li₃PS₄): Coupling Morphological Evolution to Electrochemical Properties

Perrenot,

Fauchier‐Magnan,

Mirolo

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

Thiophosphate solid electrolytes (Li3PS4, hereafter denoted LPS) have the advantage of presenting a reasonable ionic conductivity at room temperature (≈ 0.3 mS cm−1) and an easy manufacturing, meaning that they can be sintered at room temperature. Unfortunately, during cycling, several chemo‐mechanical degradations quite often attributed to the electrochemical activities occur, but they could also be linked to the sintering process. To date, a fundamental understanding of room‐temperature sintering and its impact on the microstructure, the ionic conductivity, and the link between electrochemistry and structure/morphology remains imprecise. In this study, a comprehensive study of homemade amorphous 75% Li2S – 25% P2S5 (Li3PS4) is presented, investigating the influence of pressure and time of room temperature sintering. Focused ion beam‐scanning electron microscopy coupled to electrochemical techniques such as electrochemical impedance spectroscopy, Li plating/ stripping and coupled to structural techniques such as wide‐angle X‐ray scattering are used to establish the link between structure, morphology, and electrochemical properties. It is demonstrated that the room temperature sintering of solid electrolytes is not that trivial and that the commonly accepted rule “less porosity = better ionic conductivity” is not always true and that many additional parameters should be considered to properly sinter the solid electrolyte.

show abstract

Analysis of structural and thermal stability in the positive electrode for sulfide-based all-solid-state lithium batteries

Cited by 43 publications

References 21 publications

Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

Room‐Temperature Sintering of Amorphous Thiophosphate Solid Electrolyte (Li₃PS₄): Coupling Morphological Evolution to Electrochemical Properties

Contact Info

Product

Resources

About

Analysis of structural and thermal stability in the positive electrode for sulfide-based all-solid-state lithium batteries

Cited by 43 publications

References 21 publications

Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Crystallization behavior of the Li2S–P2S5 glass electrolyte in the LiNi1/3Mn1/3Co1/3O2 positive electrode layer

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

Room‐Temperature Sintering of Amorphous Thiophosphate Solid Electrolyte (Li3PS4): Coupling Morphological Evolution to Electrochemical Properties

Contact Info

Product

Resources

About

Room‐Temperature Sintering of Amorphous Thiophosphate Solid Electrolyte (Li₃PS₄): Coupling Morphological Evolution to Electrochemical Properties