scholarly journals CO2-sourced polycarbonates as solid electrolytes for room temperature operating lithium batteries

2019 ◽  
Vol 7 (16) ◽  
pp. 9844-9853 ◽  
Author(s):  
Farid Ouhib ◽  
Leire Meabe ◽  
Abdelfattah Mahmoud ◽  
Nicolas Eshraghi ◽  
Bruno Grignard ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Batteries ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Electrolyte Membrane ◽  
Temperature Operating

A CO2-sourced self-standing solid electrolyte membrane is prepared and evaluated for room temperature operating lithium batteries.

scholarly journals New Series of Ternary Metal Chloride Superionic Conductors for High Performance All-Solid-State Lithium Batteries

2021 ◽  
Author(s):  
Jianwen Liang ◽  
Eveline van der Maas ◽  
Jing Luo ◽  
Xiaona Li ◽  
Ning Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Lithium Batteries ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Ionic Conductivities ◽  
Orthorhombic Phase ◽  
Superionic Conductors ◽  
Orthorhombic Structure ◽  
Trigonal Structure

Abstract Understanding the relationship between structure, ionic conductivity, and synthesis is the key to the development of solid electrolytes for all-solid-state Lithium batteries. Here, we investigate chloride solid electrolytes with compositions Li3 − 3xM1+xCl6 (-0.14 < x ≤ 0.5, M = Tb, Dy, Ho, Y, Er, Tm). When x > 0.04, a trigonal to orthorhombic phase transition occurs in the isostructural Li-Dy-Cl, Li-Ho-Cl, Li-Y-Cl, Li-Er-Cl and Li-Tm-Cl solid electrolytes. The new orthorhombic phase shows a four-fold increase in ionic conductivity up to 1.3×10− 3 S cm− 1 at room temperature for Li2.73Ho1.09Cl6 (x = 0.09) when compared to the trigonal Li3HoCl6. For isostructural Li-Dy-Cl, Li-Y-Cl, Li-Er-Cl and Li-Tm-Cl solid electrolytes, about one order of magnitude increase in ionic conductivities are observed for the orthorhombic structure compared to the trigonal structure. Using the Li-Ho-Cl components as an example, detailed studies of its structure, phase transition, ionic conductivity, air stability and electrochemical stability have been made. Molecular dynamics simulations based on density functional theory reveal that the different cations arrangement in the orthorhombic structure leads to a higher lithium diffusivity as compared to the trigonal structure, rationalizing the improved ionic conductivities of the new Li-M-Cl electrolytes. All-solid-state batteries of In/Li2.73Ho1.09Cl6/NMC811 demonstrate excellent electrochemical performance at both room temperature and − 10°C. As relevant to the vast number of isostructural halide electrolytes, the present structure control strategy provides guidance for the design of novel halide superionic conductors.

Solvothermal synthesis high lithium ionic conductivity of Gd-doped Li1.3 Al0.3Ti1.7(PO4)3 solid electrolyte

2021 ◽  
pp. 2140002
Author(s):  
Mingxia Fan ◽  
Xiangyu Deng ◽  
Anqiao Zheng ◽  
Songdong Yuan
Keyword(s):  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Lithium Ion ◽  
High Ionic Conductivity ◽  
Doping Content ◽  
First Time ◽  
Maximum Content ◽  
Material Price

NASICON-type Li[Formula: see text]Al[Formula: see text]Ti[Formula: see text](PO[Formula: see text] (LATP) solid electrolytes have been widely studied because of its stability in the air, low material price and high ionic conductivity. Gd-doped Li[Formula: see text]Al[Formula: see text]Gd[Formula: see text]Ti[Formula: see text](PO[Formula: see text] ([Formula: see text]= 0, 0.025, 0.05, 0.075 and 0.1) with high ionic conductivity was successfully synthesized by solvothermal method for the first time in this work. The effect of Gd doping content on the structure and electrochemical performance of solid electrolytes was systematically studied. The optimal doping content of Gd is [Formula: see text]= 0.075. With the Gd doping content of 0.075, the solid electrolyte has the highest ionic conductivity of 4.23 × 10[Formula: see text] S cm[Formula: see text] at room temperature, the lowest activation energy of 0.247 eV and the highest relative density of 94.89%. This is because the fact that when [Formula: see text]= 0.075, it is the maximum content of Gd[Formula: see text] to replace Al[Formula: see text] and can completely enter the lattice of LATP, and does not emerge too much non-lithium ion conductive GdPO4 phase.

scholarly journals Research Progress and Application of PEO-Based Solid State Polymer Composite Electrolytes

2021 ◽  
Vol 9 ◽  
Author(s):  
Danyang Zhang ◽  
Lina Li ◽  
Xiaochao Wu ◽  
Jun Wang ◽  
Qingkui Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Solid Electrolyte ◽  
Lithium Batteries ◽  
Solid Electrolytes ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Cycle Performance ◽  
Composite Solid Electrolyte ◽  
Composite Solid

As a high-efficiency energy storage and conversion device, lithium-ion batteries have high energy density, and have received widespread attention due to their good cycle performance and high reliability. However, currently commercial lithium batteries usually use organic solutions containing various lithium salts as liquid electrolytes. In practical applications, liquid electrolytes have many shortcomings and shortcomings, such as poor chemical stability, flammability, and explosion. Therefore, the liquid electrolyte has a great safety hazard. The use of solid electrolyte ensures the safety of lithium-ion batteries, and has the advantages of high energy density, good cycle performance, long life, and wide electrochemical window, making the battery safer and more durable, with higher energy density and simple battery Structural design. Solid electrolytes mainly include inorganic solid electrolytes and organic polymer solid electrolytes. Although both inorganic solid electrolytes and polymer solid electrolytes have their own advantages, as far as the existing research work is concerned, whether it is an inorganic system or a polymer system, a single-system solid electrolyte can never achieve the full performance of an ideal solid electrolyte. The composite solid electrolyte composed of active or passive inorganic filler and polymer matrix is considered as a promising candidate electrolyte for all-solid-state lithium batteries. Among many polymer systems, PEO-based is considered to be the most ideal polymer substrate. In this review article, we first introduced the structure, properties, and preparation methods of PEO-based polymer electrolytes. Furthermore, the researches related to the modification of PEO-based polymer solid electrolytes in recent years are summarized. The contribution of polymer structural modification and the introduction of additives to the ionic conductivity, electrochemical stability and mechanical properties of PEO-based solid electrolytes is described. Examples of different composite solid electrolyte design concepts were extensively discussed, such as inorganic inert nanoparticles/PEO, oxide/PEO, and sulfide/PEO. Finally, the future development direction of composite solid electrolytes was prospected.

A hybrid polymer/oxide/ionic-liquid solid electrolyte for Na-metal batteries

2017 ◽  
Vol 5 (14) ◽  
pp. 6424-6431 ◽  
Author(s):  
Shufeng Song ◽  
Masashi Kotobuki ◽  
Feng Zheng ◽  
Chaohe Xu ◽  
Serguei V. Savilov ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Electrochemical Performances ◽  
Hybrid Polymer ◽  
Infant Stage ◽  
Room Temperature Operation

The development of solid electrolytes with superior electrical and electrochemical performances for the room-temperature operation of sodium (Na)-based batteries is at the infant stage and still remains a challenge.

Sluggish anion transport provides good kinetic stability to the anhydrous anti-perovskite solid electrolyte Li3OCl

2021 ◽  
Author(s):  
Jerdson Americo Silva Serejo ◽  
Josias Santos Santos Pereira ◽  
Rodolpho Mouta ◽  
Luis Guilherme Carvalho Rego
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Low Cost ◽  
Anion Transport ◽  
Kinetic Stability ◽  
Liquid Electrolytes

Some lithium oxyhalides have been proposed as low-cost solid electrolytes for having room-temperature Li+ conductivity close to commercial liquid electrolytes, but with the advantages of enabling higher energy densities through...

scholarly journals Measuring and tailoring Li-ion interfacial transport in hybrid solid electrolytes

2021 ◽  
Author(s):  
Ming Liu ◽  
Ernst van Eck ◽  
Swapna Ganapathy ◽  
Marnix Wagemaker
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
Ion Conductivity ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Organic Solid ◽  
Li Ion ◽  
Inorganic And Organic

Abstract Development of commercial solid-state batteries so far been hindered by the individual limitations of inorganic and organic solid-electrolytes, motivating hybrid concepts. However, room-temperature performance of hybrid-solid electrolytes is still insufficient in terms of ion conductivity, where especially the role and impact of the inorganic and organic interphases is largely unexplored. A key challenge is to assess the Li-ion transport over the interfaces directly and relate this to the surface chemistry. Here the lithium-ion conductivity in hybrid-solid electrolytes, the interface structure and Li+ interface transport was investigated by state-of-art solid-state nuclear magnetic resonance methodologies. In a hybrid-solid Polyethylene oxide polymer – inorganic electrolyte, two representative types of ionic liquids, having a different miscibility with the polymer, were used as a benchmark to tailor the local environment at the interface between the inorganic and organic solid electrolytes species. The poor miscibility ionic liquid wets the polymer-inorganic interface and raises the local polarizability, thereby lowering the diffusional barrier, which activates the high conductivity of the inorganic solid-electrolyte, resulting in and overall room temperature conductivity of 0.25 mS/cm. A very high critical current density of 0.25 mA/cm2 versus a Li-metal anode is achieved, demonstrating improved stability, and a LiFePO4 – Li-metal full solid-state cell can be cycled at room temperature at an Coulombic efficiency of 99.9%. The local interface environment between the solid electrolyte phases in hybrid solid electrolytes, is thus demonstrated to be the bottleneck and tailoring the interface properties appears a viable route towards the design of highly conducting hybrid-solid electrolyte concepts.

Composite Solid Electrolyte for Solid-State Lithium Batteries Workable at Room Temperature

2020 ◽  
Vol 3 (12) ◽  
pp. 12127-12133
Author(s):  
Yiyang Sun ◽  
Feng Jin ◽  
Jing Li ◽  
Baotong Liu ◽  
Xi Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Lithium Batteries ◽  
Room Temperature ◽  
Composite Solid Electrolyte ◽  
Composite Solid

scholarly journals A cost-effective and humidity-tolerant chloride solid electrolyte for lithium batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kai Wang ◽  
Qingyong Ren ◽  
Zhenqi Gu ◽  
Chaomin Duan ◽  
Jinzhu Wang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Large Scale ◽  
Room Temperature ◽  
Raw Materials ◽  
Specific Capacity ◽  
Cost Effective ◽  
High Ionic Conductivity ◽  
Superionic Conductors

AbstractLi-ion-conducting chloride solid electrolytes receive considerable attention due to their physicochemical characteristics such as high ionic conductivity, deformability and oxidative stability. However, the raw materials are expensive, and large-scale use of this class of inorganic superionic conductors seems unlikely. Here, a cost-effective chloride solid electrolyte, Li2ZrCl6, is reported. Its raw materials are several orders of magnitude cheaper than those for the state-of-the-art chloride solid electrolytes, but high ionic conductivity (0.81 mS cm–1 at room temperature), deformability, and compatibility with 4V-class cathodes are still simultaneously achieved in Li2ZrCl6. Moreover, Li2ZrCl6 demonstrates a humidity tolerance with no sign of moisture uptake or conductivity degradation after exposure to an atmosphere with 5% relative humidity. By combining Li2ZrCl6 with the Li-In anode and the single-crystal LiNi0.8Mn0.1Co0.1O2 cathode, we report a room-temperature all-solid-state cell with a stable specific capacity of about 150 mAh g–1 for 200 cycles at 200 mA g–1.

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