Balancing Stability and Li-ion Conductivity of Li10SiP2O12 for Solid-State Electrolytes with Assistance of body-centered cubic oxygen framework

2021 ◽  
Author(s):  
Bingkai Zhang ◽  
Zhiwei He ◽  
Jiajie Zhong ◽  
Luyi Yang ◽  
Zhan Lin ◽  
...  
Keyword(s):  
Solid State ◽  
High Conductivity ◽  
Ion Conductivity ◽  
Body Centered Cubic ◽  
Li Ion ◽  
Solid State Electrolytes ◽  
Oxygen Framework

Li10MP2S12 (LMPS, M = Ge, Sn, or Si) share an underlying body-centered cubic (bcc) anion framework enabling their high Li-ion conductivity. To take full use of the high conductivity of...

Highly Conjugated Three-Dimensional Covalent Organic Frame- works with Enhanced Li-ion Conductivity as Solid-State Electrolytes for High-Performance Lithium Metal Batteries

2022 ◽  
Author(s):  
Shi Wang ◽  
Xiang-Chun Li ◽  
Tao Cheng ◽  
Yuan-Yuan Liu ◽  
Qiange Li ◽  
...  
Keyword(s):  
Solid State ◽  
Ion Transport ◽  
High Performance ◽  
Three Dimensional ◽  
Ion Conductivity ◽  
Covalent Organic Frameworks ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Li Ion ◽  
Solid State Electrolytes

Covalent organic frameworks (COFs) with well-tailored channels have the potential to efficiently transport ions yet remain to be explored. The ion transport capability is generally limited due to the lack...

scholarly journals Correlative electrochemical strain and scanning electron microscopy for local characterization of the solid state electrolyte Li1.3Al0.3Ti1.7(PO4)3

2018 ◽  
Vol 9 ◽  
pp. 1564-1572 ◽  
Author(s):  
Nino Schön ◽  
Deniz Cihan Gunduz ◽  
Shicheng Yu ◽  
Hermann Tempel ◽  
Roland Schierholz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Solid State ◽  
Electrochemical Impedance ◽  
Secondary Phase ◽  
Ion Conductivity ◽  
Correlative Microscopy ◽  
Li Ion ◽  
Solid State Electrolytes ◽  
Scanning Electron

Correlative microscopy has been used to investigate the relationship between Li-ion conductivity and the microstructure of lithium aluminum titanium phosphate (Li1.3Al0.3Ti1.7(PO4)3, LATP) with high spatial resolution. A key to improvement of solid state electrolytes such as LATP is a better understanding of interfacial and ion transport properties on relevant length scales in the nanometer to micrometer range. Using common techniques, such as electrochemical impedance spectroscopy, only global information can be obtained. In this work, we employ multiple microscopy techniques to gain local chemical and structural information paired with local insights into the Li-ion conductivity based on electrochemical strain microscopy (ESM). Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) have been applied at identical regions to identify microstructural components such as an AlPO4 secondary phase. We found significantly lower Li-ion mobility in the secondary phase areas as well as at grain boundaries. Additionally, various aspects of signal formation obtained from ESM for solid state electrolytes are discussed. We demonstrate that correlative microscopy is an adjuvant tool to gain local insights into interfacial properties of energy materials.

scholarly journals Li2(BH4)(NH2) Nanoconfined in SBA-15 as Solid-State Electrolyte for Lithium Batteries

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 946
Author(s):  
Qianyi Yang ◽  
Fuqiang Lu ◽  
Yulin Liu ◽  
Yijie Zhang ◽  
Xiujuan Wang ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Transference Number ◽  
Electrochemical Stability ◽  
Ion Conductivity ◽  
Solid State Batteries ◽  
Li Ion ◽  
Conduction Properties

Solid electrolytes with high Li-ion conductivity and electrochemical stability are very important for developing high-performance all-solid-state batteries. In this work, Li2(BH4)(NH2) is nanoconfined in the mesoporous silica molecule sieve (SBA-15) using a melting–infiltration approach. This electrolyte exhibits excellent Li-ion conduction properties, achieving a Li-ion conductivity of 5.0 × 10−3 S cm−1 at 55 °C, an electrochemical stability window of 0 to 3.2 V and a Li-ion transference number of 0.97. In addition, this electrolyte can enable the stable cycling of Li|Li2(BH4)(NH2)@SBA-15|TiS2 cells, which exhibit a reversible specific capacity of 150 mAh g−1 with a Coulombic efficiency of 96% after 55 cycles.

Cationic covalent organic framework based all-solid-state electrolytes

2020 ◽  
Vol 4 (4) ◽  
pp. 1164-1173 ◽  
Author(s):  
Zhen Li ◽  
Zhi-Wei Liu ◽  
Zhen-Jie Mu ◽  
Chen Cao ◽  
Zeyu Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid Electrolytes ◽  
Lithium Ion ◽  
Ion Conductivity ◽  
Li Ion Battery ◽  
Covalent Organic Framework ◽  
Li Ion ◽  
Lithium Ion Conductivity ◽  
Organic Framework

Two new imidazolium-based cationic COFs were synthesized and employed as all-solid electrolytes, and exhibited high lithium ion conductivity at high temperature. The assembled Li-ion battery displays preferable battery performance at 353 K.

A solid-state dendrite-free lithium-metal battery with improved electrode interphase and ion conductivity enhanced by a bifunctional solid plasticizer

2019 ◽  
Vol 7 (33) ◽  
pp. 19565-19572 ◽  
Author(s):  
Jun Peng ◽  
Li-Na Wu ◽  
Jin-Xia Lin ◽  
Chen-Guang Shi ◽  
Jing-Jing Fan ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Electrolyte ◽  
Ion Conductivity ◽  
Lithium Metal ◽  
Ion Diffusion ◽  
Interface Stability ◽  
Li Ion ◽  
Lithium Metal Battery ◽  
Composite Solid

By adding a bifunctional plasticizer (SN) and an inorganic conductor (LAGP) to a PEO matrix, an inorganic–organic composite solid-state polymer electrolyte (SPE) was constructed to enhance Li-ion diffusion and interface stability.

High throughput identification of Li ion diffusion pathways in typical solid state electrolytes and electrode materials by BV-Ewald method

2019 ◽  
Vol 7 (3) ◽  
pp. 1300-1306 ◽  
Author(s):  
Dajun Chen ◽  
Jianshu Jie ◽  
Mouyi Weng ◽  
Shucheng Li ◽  
Dong Chen ◽  
...  
Keyword(s):  
Solid State ◽  
High Throughput ◽  
Electrode Materials ◽  
Ion Diffusion ◽  
Ewald Method ◽  
Li Ion ◽  
Solid State Electrolytes

A new BV-Ewald method was developed to calculate Li-ion diffusion pathways more quickly and correctly.

scholarly journals Mastering the interface for advanced all-solid-state lithium rechargeable batteries

2016 ◽  
Vol 113 (47) ◽  
pp. 13313-13317 ◽  
Author(s):  
Yutao Li ◽  
Weidong Zhou ◽  
Xi Chen ◽  
Xujie Lü ◽  
Zhiming Cui ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Rechargeable Batteries ◽  
Ion Conductivity ◽  
Rhombohedral Structure ◽  
Interfacial Resistance ◽  
Lithium Anode ◽  
Metal Anode ◽  
Li Ion

A solid electrolyte with a high Li-ion conductivity and a small interfacial resistance against a Li metal anode is a key component in all-solid-state Li metal batteries, but there is no ceramic oxide electrolyte available for this application except the thin-film Li-P oxynitride electrolyte; ceramic electrolytes are either easily reduced by Li metal or penetrated by Li dendrites in a short time. Here, we introduce a solid electrolyte LiZr2(PO4)3 with rhombohedral structure at room temperature that has a bulk Li-ion conductivity σLi = 2 × 10−4 S⋅cm−1 at 25 °C, a high electrochemical stability up to 5.5 V versus Li+/Li, and a small interfacial resistance for Li+ transfer. It reacts with a metallic lithium anode to form a Li+-conducting passivation layer (solid-electrolyte interphase) containing Li3P and Li8ZrO6 that is wet by the lithium anode and also wets the LiZr2(PO4)3 electrolyte. An all-solid-state Li/LiFePO4 cell with a polymer catholyte shows good cyclability and a long cycle life.

Engineering Frenkel defects of anti-perovskite solid-state electrolytes and their applications in all-solid-state lithium-ion batteries

2020 ◽  
Vol 56 (8) ◽  
pp. 1251-1254 ◽  
Author(s):  
Lihong Yin ◽  
Huimin Yuan ◽  
Long Kong ◽  
Zhouguang Lu ◽  
Yusheng Zhao
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Ion Conductivity ◽  
Cell Configuration ◽  
Solid State Cell ◽  
Frenkel Defects ◽  
Lithium Ion Conductivity ◽  
Solid State Electrolytes

Fluorinated lithium-rich anti-perovskite (F-LiRAP) is proposed to enhance lithium ion conductivity by creating Frenkel defects and an all-solid-state cell configuration based on F-LiRAP is successfully demonstrated.

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