Stress-Induced Uphill Diffusion with Interfacial Contact Loss in Solid-State Electrodes

Author(s):  
Yanfei Zhao ◽  
Dingxin Shi ◽  
Bo Lu ◽  
Junqian Zhang
2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Shuaifeng Lou ◽  
Qianwen Liu ◽  
Fang Zhang ◽  
Qingsong Liu ◽  
Zhenjiang Yu ◽  
...  

Abstract Interfacial issues commonly exist in solid-state batteries, and the microstructural complexity combines with the chemical heterogeneity to govern the local interfacial chemistry. The conventional wisdom suggests that “point-to-point” ion diffusion at the interface determines the ion transport kinetics. Here, we show that solid-solid ion transport kinetics are not only impacted by the physical interfacial contact but are also closely associated with the interior local environments within polycrystalline particles. In spite of the initial discrete interfacial contact, solid-state batteries may still display homogeneous lithium-ion transportation owing to the chemical potential force to achieve an ionic-electronic equilibrium. Nevertheless, once the interior local environment within secondary particle is disrupted upon cycling, it triggers charge distribution from homogeneity to heterogeneity and leads to fast capacity fading. Our work highlights the importance of interior local environment within polycrystalline particles for electrochemical reactions in solid-state batteries and provides crucial insights into underlying mechanism in interfacial transport.


2019 ◽  
Vol 12 (3) ◽  
pp. 938-944 ◽  
Author(s):  
Xinzhi Chen ◽  
Wenjun He ◽  
Liang-Xin Ding ◽  
Suqing Wang ◽  
Haihui Wang

A cathode-supported solid electrolyte membrane framework with enhanced interfacial contact can significantly improve the electrochemical performance of all solid state batteries.


Small ◽  
2021 ◽  
pp. 2006578
Author(s):  
Chenglong Deng ◽  
Nan Chen ◽  
Chuanyu Hou ◽  
Hanxiao Liu ◽  
Zhiming Zhou ◽  
...  

2015 ◽  
Vol 33 (2) ◽  
pp. 67s-70s
Author(s):  
Zhonghao Heng ◽  
Touma Matsushima ◽  
Yusuke Nashiki ◽  
Masakatsu Maeda ◽  
Keke Zhang ◽  
...  

Author(s):  
Lijie Yang ◽  
Zaili Lu ◽  
Yuanxue Qin ◽  
Chen Wu ◽  
Chuankai Fu ◽  
...  

The interrelated LLZO-BG/Li interfacial issues: the air instability of LLZO-BG and its instability with Li anode will induce the poor LLZO-BG/Li interfacial contact; the poor contact will accelerate the formation of Li dendrite.


2020 ◽  
Vol 12 (12) ◽  
pp. 14079-14086 ◽  
Author(s):  
Jiamin Shi ◽  
Gaozhan Liu ◽  
Wei Weng ◽  
Liangting Cai ◽  
Qiang Zhang ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (23) ◽  
pp. 12877-12885
Author(s):  
Liaoyuan Xia ◽  
Shaoheng Hu ◽  
Xueqin Zhang ◽  
Le Huang ◽  
Yu Liao ◽  
...  

3D “skin-framework” architecture of the MCN with large interfacial contact area and high electrical conductivity enable it to serve as a powerful electroactive platform for high-performance solid-state MnO2-MCN//AC-MCN ASC device.


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