Space Charge Layer Effect in Sulfide Solid Electrolytes in All-Solid-State Batteries: In-situ Characterization and Resolution

Author(s):  
Wei He ◽  
Lei Zhou ◽  
Muhammad Khurram Tufail ◽  
Pengfei Zhai ◽  
Peiwen Yu ◽  
...  
2019 ◽  
Vol 123 (16) ◽  
pp. 10487-10493 ◽  
Author(s):  
Takashi Tsuchiya ◽  
Yaomi Itoh ◽  
Yoshikazu Yamaoka ◽  
Shigenori Ueda ◽  
Yukihiro Kaneko ◽  
...  

2014 ◽  
Vol 26 (14) ◽  
pp. 4248-4255 ◽  
Author(s):  
Jun Haruyama ◽  
Keitaro Sodeyama ◽  
Liyuan Han ◽  
Kazunori Takada ◽  
Yoshitaka Tateyama

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Longlong Wang ◽  
Ruicong Xie ◽  
Bingbing Chen ◽  
Xinrun Yu ◽  
Jun Ma ◽  
...  

AbstractThe space charge layer (SCL) is generally considered one of the origins of the sluggish interfacial lithium-ion transport in all-solid-state lithium-ion batteries (ASSLIBs). However, in-situ visualization of the SCL effect on the interfacial lithium-ion transport in sulfide-based ASSLIBs is still a great challenge. Here, we directly observe the electrode/electrolyte interface lithium-ion accumulation resulting from the SCL by investigating the net-charge-density distribution across the high-voltage LiCoO2/argyrodite Li6PS5Cl interface using the in-situ differential phase contrast scanning transmission electron microscopy (DPC-STEM) technique. Moreover, we further demonstrate a built-in electric field and chemical potential coupling strategy to reduce the SCL formation and boost lithium-ion transport across the electrode/electrolyte interface by the in-situ DPC-STEM technique and finite element method simulations. Our findings will strikingly advance the fundamental scientific understanding of the SCL mechanism in ASSLIBs and shed light on rational electrode/electrolyte interface design for high-rate performance ASSLIBs.


2019 ◽  
Vol 7 (22) ◽  
pp. 13650-13657 ◽  
Author(s):  
Seong Heon Kim ◽  
KiHong Kim ◽  
Hyungkook Choi ◽  
Dongmin Im ◽  
Sung Heo ◽  
...  

The in situ AES/AEM technique for practical all-solid-state batteries with sulfur-based solid electrolytes was developed and the real time observation of Li dendrite growth was successfully achieved.


2019 ◽  
Vol 92 (11) ◽  
pp. 430-434
Author(s):  
Akitoshi HAYASHI ◽  
Atsushi SAKUDA ◽  
Masahiro TATSUMISAGO

2019 ◽  
Author(s):  
Xiaohan Wu ◽  
Juliette Billaud ◽  
Iwan Jerjen ◽  
Federica Marone ◽  
Yuya Ishihara ◽  
...  

<div> <div> <div> <p>All-solid-state batteries are considered as attractive options for next-generation energy storage owing to the favourable properties (unit transference number and thermal stabilities) of solid electrolytes. However, there are also serious concerns about mechanical deformation of solid electrolytes leading to the degradation of the battery performance. Therefore, understanding the mechanism underlying the electro-mechanical properties in SSBs are essentially important. Here, we show three-dimensional and time-resolved measurements of an all-solid-state cell using synchrotron radiation x-ray tomographic microscopy. We could clearly observe the gradient of the electrochemical reaction and the morphological evolution in the composite layer. Volume expansion/compression of the active material (Sn) was strongly oriented along the thickness of the electrode. While this results in significant deformation (cracking) in the solid electrolyte region, we also find organized cracking patterns depending on the particle size and their arrangements. This study based on operando visualization therefore opens the door towards rational design of particles and electrode morphology for all-solid-state batteries. </p> </div> </div> </div>


Author(s):  
Maoyi Yi ◽  
Li Jie ◽  
Xin-ming Fan ◽  
Maohui Bai ◽  
Zhi Zhang ◽  
...  

PEO-based composite electrolytes are one of the most practical electrolytes in all-solid batteries (ASSBs). To achieve the perspective of ASSBs with high energy density, PEO based composite electrolytes should match...


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