Zhongyue Wang , Qi Ma , Zhiwen Wu , Jie Zhou , Qing Zhang , Qi Zhang , Peng Lv , Kehan Yu , Wei Wei
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引用次数: 0
Abstract
Composite solid electrolytes (CSEs) are attractive candidates for all-solid-state lithium-ion batteries (ASSLIBs), and incorporating active ceramic fibers within polymer matrix represents an ideal structure for maximizing ionic conductivity. LAGP glass exhibits the best thermal stability among the limited lithium-ion conductors that can exist in glassy state, but it is insufficient for thermal drawing into fibers directly. By systematically studying the thermal properties, ionic conductivity and microstructure of LAGP modified by single component (Y2O3/B2O3/SiO2) and multicomponent (Re2O3-B2O3) (Re, Rare earth), Re2O3-B2O3 co-modified LAGP shows the most competitive thermal stability and ionic conductivity. Among them, LAGP-0.06Y2O3-0.05B2O3 glass reveals excellent thermal stability (ΔT = 145 °C), and a dense ceramic electrolyte with an ionic conductivity of 3.11 × 10−4 S cm−1 and low active energy (Ea) of 0.38 eV can be achieved. LAGP-0.06Y2O3-0.05B2O3 glass fibers are thermally drawn for the first time, and a modified LAGP ceramic fiber with high ionic conductivity up to 3.87 × 10−4 S cm−1 is obtained. The short preparation period, high efficiency and large-scale manufacturability, controllable size and high ionic conductivity make LAGP-0.06Y2O3-0.05B2O3 ceramic fibers highly competitive for use in high-performance CSEs containing active ceramic fibers.
期刊介绍：
Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties.
Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour.
Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.
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