Effectively suppressing lithium dendrite growth via an es-LiSPCE single-ion conducting nano fiber membrane

2020 ◽  
Vol 8 (5) ◽  
pp. 2518-2528 ◽  
Author(s):  
Yang He ◽  
Jiaying Wang ◽  
Yunfeng Zhang ◽  
Shikang Huo ◽  
Danli Zeng ◽  
...  
Keyword(s):  
Anode Materials ◽  
Dendrite Growth ◽  
Potential Candidate ◽  
Lithium Metal ◽  
Next Generation ◽  
Fiber Membrane ◽  
Nano Fiber ◽  
Ion Conducting ◽  
Lithium Dendrite

Lithium metal is a potential candidate for next-generation anode materials.

scholarly journals Blocking Lithium Dendrite Growth in Solid-State Batteries with an Ultrathin Amorphous Li-La-Zr-O Solid Electrolyte

2020 ◽  
Author(s):  
Jordi Sastre ◽  
Moritz H. Futscher ◽  
Lea Pompizi ◽  
Abdessalem Aribia ◽  
Agnieszka Priebe ◽  
...  
Keyword(s):  
Solid State ◽  
Electronic Conductivity ◽  
High Capacity ◽  
Dendrite Growth ◽  
Potential Candidate ◽  
Sputtering Deposition ◽  
Lithium Garnet ◽  
Solid State Batteries ◽  
Current Densities ◽  
Lithium Dendrite

Lithium garnet Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZO) electrolyte is a potential candidate for the development of solid-state batteries with lithium metal as high-capacity anode. But ceramic LLZO in the form of pellets or polycrystalline films can still suffer from lithium dendrite penetration because of surface and bulk inhomogeneities and grain boundaries with non-negligible electronic conductivity. In contrast, the amorphous phase of LLZO (aLLZO) possesses a grain-boundary-free microstructure with moderate ionic conductivity (10<sup>-7</sup> S cm<sup>-1</sup>) and high electronic insulation (10<sup>-14</sup> S cm<sup>-1</sup>), which in the form of thin coatings can offer resistance to lithium dendrite growth. We explore the electrochemical properties and applications of aLLZO ultrathin films prepared by sputtering deposition. The defect-free and conformal nature of the films enables microbatteries with an electrolyte thickness as low as 70 nm, which withstand charge-discharge at 0.2 mA cm<sup>-2</sup> for over 500 cycles. In Li/aLLZO/Li symmetric cells, plating-stripping at current densities up to 3.2 mA cm<sup>-2</sup> shows no signs of lithium penetration. Finally, we show that the application of aLLZO as a coating on LLZO ceramic pellets significantly impedes the formation of Li dendrites.

Succinic Anhydride as a Deposition-Regulating Additive for Dendrite-Free Lithium Metal Anodes

2021 ◽  
Author(s):  
Yu-Xiang Xie ◽  
Yi-Xin Huang ◽  
Xiaohong Wu ◽  
Chen-Guang Shi ◽  
Li-Na Wu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Anode Material ◽  
Succinic Anhydride ◽  
Storage Systems ◽  
Dendrite Growth ◽  
Lithium Metal ◽  
Next Generation ◽  
Energy Storage Systems ◽  
Lithium Metal Anodes ◽  
High Theoretical Capacity

Li metal is a promising anode material for next-generation energy storage systems owing to its high theoretical capacity and low potential. However, uncontrollable Li dendrite growth during Li plating and...

scholarly journals Fluorinated hybrid solid-electrolyte-interphase for dendrite-free lithium deposition

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Rajesh Pathak ◽  
Ke Chen ◽  
Ashim Gurung ◽  
Khan Mamun Reza ◽  
Behzad Bahrami ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Dendrite Growth ◽  
Alloy Formation ◽  
Lithium Metal ◽  
Practical Applications ◽  
Lithium Alloy ◽  
Lithium Dendrite

AbstractLithium metal anodes have attracted extensive attention owing to their high theoretical specific capacity. However, the notorious reactivity of lithium prevents their practical applications, as evidenced by the undesired lithium dendrite growth and unstable solid electrolyte interphase formation. Here, we develop a facile, cost-effective and one-step approach to create an artificial lithium metal/electrolyte interphase by treating the lithium anode with a tin-containing electrolyte. As a result, an artificial solid electrolyte interphase composed of lithium fluoride, tin, and the tin-lithium alloy is formed, which not only ensures fast lithium-ion diffusion and suppresses lithium dendrite growth but also brings a synergistic effect of storing lithium via a reversible tin-lithium alloy formation and enabling lithium plating underneath it. With such an artificial solid electrolyte interphase, lithium symmetrical cells show outstanding plating/stripping cycles, and the full cell exhibits remarkably better cycling stability and capacity retention as well as capacity utilization at high rates compared to bare lithium.

Perspectives for restraining harsh lithium dendrite growth: Towards robust lithium metal anodes

2018 ◽  
Vol 15 ◽  
pp. 148-170 ◽  
Author(s):  
Feng Wu ◽  
Yan-Xia Yuan ◽  
Xin-Bing Cheng ◽  
Ying Bai ◽  
Yu Li ◽  
...  
Keyword(s):  
Dendrite Growth ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
Lithium Dendrite ◽  
Metal Anodes

Electrochemically induced highly ion conductive porous scaffolds to stabilize lithium deposition for lithium metal anodes

2019 ◽  
Vol 7 (19) ◽  
pp. 11683-11689 ◽  
Author(s):  
Qiulin Chen ◽  
Yifang Yang ◽  
Hongfei Zheng ◽  
Qingshui Xie ◽  
Xiaolin Yan ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Homogeneous Nucleation ◽  
Dendrite Growth ◽  
High Ionic Conductivity ◽  
Porous Scaffolds ◽  
Lithium Metal ◽  
Nucleation Overpotential ◽  
Lithium Metal Anodes ◽  
Lithium Dendrite ◽  
Zn Alloy

The electrochemically-induced lithiophilic Li–Zn alloy scaffold with high ionic conductivity, together with the Li2O passivated surface, can reduce the nucleation overpotential of Li deposition, enhance the Li+ ions diffusion and guide the homogeneous nucleation of Li, and thus suppressing the lithium dendrite growth.

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