Journal ArticleDOI
An investigation into compressive deformation and failure mechanisms in a novel Li-ion solid-state electrolyte
Tofunmi Ogunfunmi,Nnaemeka. Ebechidi,Ridwan Ahmed,O. K. Oyewole,John D. Obayemi,Wole Soboyejo +5 more
TLDR
In this paper, a combination of in-situ optical microscopy and Digital Imaging Correlation (strain mapping) techniques was used to study compressive deformation and cracking phenomena in a novel solid-state Li-ion electrolyte.Abstract:
Solid-state batteries are generally considered to be safer than their liquid-state counterparts due to their decreased potential for fire or short circuiting. The fabrication of solid-state batteries relies on the application of stack crimping pressure that increases the interfacial surface contacts between electrolytes and the electrodes. However, excessive compressive crimping stresses (that occur in cell assembly) can give rise to cracking phenomena that can degrade battery performance and lead to thermal runaway or failure. It is, therefore, important to develop an understanding of failure mechanisms in solid-state Li-ion electrolytes. In this paper, we use a combination of in-situ optical microscopy and Digital Imaging Correlation (strain mapping) techniques to study compressive deformation and cracking phenomena in a novel solid-state Li-ion electrolyte. The stress states associated with the different stages of compressive deformation are also presented along with those due to charge–discharge cycles. The implications of the results are discussed for the material design of robust solid-state Li ion batteries.read more
Citations
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Journal ArticleDOI
Pressure-induced interfacial contacts and the deformation in all solid-state Li-ion batteries
Ridwan Ahmed,Nnaemeka. Ebechidi,Ichwani Reisya,Kingsley Orisekeh,Adri Huda,Abdulhakeem Bello,O. K. Oyewole,Winston O. Soboyejo +7 more
TL;DR: In this paper , the authors used a combination of computational models and experiments to study the effects of stack pressure on interfacial contacts and deformation of solid state electrolytes in an all solid state battery.
Journal ArticleDOI
Combating Li metal deposits in all-solid-state battery via the piezoelectric and ferroelectric effects
Jianming Tao,Yuejiao Chen,Aman Bhardwaj,Lang Wen,Jiaxin Li,Oleg Kolosov,Ying Li,Zhensheng Hong,Zhigao Huang,Sanjay Mathur +9 more
TL;DR: In this article , the incorporation of piezo-ferroelectric materials into solid electrolytes can effectively decrease the overpotential directly, thus optimizing the Li+ flux distribution and facilitating an orderly Li deposition and leading to dendrite-free cycling.
Journal ArticleDOI
Charge-discharge-induced local strain distributions in a lithium amide-borohydride-iodide [LiBH4-LiNH2-LiI] solid electrolyte
Nnaemeka. Ebechidi,Ridwan Ahmed,O. K. Oyewole,Abdulhakeem Bello,Peter Ngene,Peter Ngene,Winston O. Soboyejo,Winston O. Soboyejo +7 more
TL;DR: In this article, Li et al. showed that for an all-solid-state lithium-oxygen battery based on the SSE lithium amide-borohydride-iodide (LiBH4-LiNH2-LiI), the heterogeneous nature of the electrolyte leads to spatial and temporal variations in the induced strain distributions.
Journal ArticleDOI
Electrochemo-mechanical response of all solid-state batteries: Finite element simulations supported by image-based 3D reconstruction of X-ray microscopy tomography
Journal ArticleDOI
Experimental Investigations on the Chemo-Mechanical Coupling in Solid-State Batteries and Electrode Materials
Jia-xuan Wang,Feng-Huan Hao +1 more
TL;DR: In this article , the authors highlight the impact of the stress generated inside solid-state batteries and summarize a part of the research methods used to study the stress of solidstate batteries, which help improve the design level of solid state batteries, thereby improving battery performance and safety.
References
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Journal ArticleDOI
Li‐ion batteries: basics, progress, and challenges
TL;DR: Li-ion batteries are the powerhouse for the digital electronic revolution in this modern mobile society, exclusively used in mobile phones and laptop computers as discussed by the authors, and much effort has been put to further improve the performance of Li-ion battery, achieved certain significant progress.
Journal ArticleDOI
Halide-stabilized LiBH4, a room-temperature lithium fast-ion conductor.
Hideki Maekawa,Motoaki Matsuo,Hitoshi Takamura,Mariko Ando,Yasuto Noda,Taiki Karahashi,Shin Ichi Orimo +6 more
TL;DR: It is shown that a chemical modification of LiBH(4) can stabilize the superionic phase even below room temperature, which will open alternative opportunities for the development of solid ionic conductors other than previously known lithium conductors.
Journal ArticleDOI
Recent Advances in Inorganic Solid Electrolytes for Lithium Batteries
Can Cao,Can Cao,Zhuo-Bin Li,Xiao-Liang Wang,Xin-Bing Zhao,Wei-Qiang Han,Wei-Qiang Han,Wei-Qiang Han +7 more
TL;DR: In this article, the authors present an overview of the recent advances in inorganic solid lithium ion conductors, which are of great interest as solid electrolytes in all-solid-state lithium batteries.
Journal ArticleDOI
Degradation mechanisms in Li-ion batteries: a state-of-the-art review
TL;DR: In this paper, the main degradation mechanisms in Li-ion batteries are reviewed, and the interaction between these components plays a critical role in successful operation of such batteries, which can have both chemical and mechanical origins and manifests itself by capacity loss, power fading or both.
Journal ArticleDOI
Pressure effects on sulfide electrolytes for all solid-state batteries
Jean-Marie Doux,Yangyuchen Yang,Darren H. S. Tan,Han Nguyen,Erik A. Wu,Xuefeng Wang,Abhik Banerjee,Ying Shirley Meng +7 more
TL;DR: In this article, the effects of both initial fabrication pressure and operating stack pressure on the electrolyte's ionic conductivity and battery performance have been analyzed; the results show that initial fabrication pressures directly affect the porosity of the electrolytes and therefore the overall performance of the cell.
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