3D Ion‐Conducting, Scalable, and Mechanically Reinforced Ceramic Film for High Voltage Solid‐State Batteries,Advanced Functional Materials

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3D Ion‐Conducting, Scalable, and Mechanically Reinforced Ceramic Film for High Voltage Solid‐State Batteries
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-06-25 , DOI: 10.1002/adfm.202002008
Hyun Woo Kim ₁ , Jinhyup Han ₂ , Young Jun Lim ₁ , YunSeok Choi ₁ , Eungje Lee ₂ , Youngsik Kim _{1,

3}

Affiliation

Concerning the safety aspects of Li⁺ ion batteries, an epoxy‐reinforced thin ceramic film (ERTCF) is prepared by firing and sintering a slurry‐casted composite powder film. The ERTCF is composed of Li⁺ ion conduction channels and is made of high amounts of sintered ceramic Li₁₊_xTi_2‐_xAl_x(PO₄)₃ (LATP) and epoxy polymer with enhanced mechanical properties for solid‐state batteries. The 2D and 3D characterizations are conducted not only for showing continuous Li⁺ ion channels thorough LATP ceramic channels with over 10⁻⁴ S cm⁻¹ of ionic conductivity but also to investigate small amounts of epoxy polymer with enhanced mechanical properties. Solid‐state Li⁺ ion cells are fabricated using the ERTCF and they show initial charge–discharge capacities of 139/133 mAh g⁻¹. Furthermore, the scope of the ERTCF is expanded to high‐voltage (>8 V) solid‐state Li⁺ ion batteries through a bipolar stacked cell design. Hence, it is expected that the present investigation will significantly contribute in the preparation of the next generation reinforced thin ceramic film electrolytes for high‐voltage solid‐state batteries.

中文翻译：

适用于高压固态电池的3D离子导电，可缩放和机械增强的陶瓷膜

有关的李的安全方面⁺离子电池，环氧增强的薄陶瓷膜（ERTCF）通过焙烧和烧结浆料浇铸复合粉末薄膜制备。ERTCF由Li ⁺离子传导通道组成，由大量的烧结陶瓷Li ₁₊_x Ti _2-_x Al _x（PO ₄）₃（LATP）和环氧聚合物制成，具有增强的固态电池机械性能。进行2D和3D表征不仅是为了显示连续的Li ⁺离子通道，而且是通过具有10 ^-4 S cm ^-1以上的LATP陶瓷通道离子导电性的研究，还研究了少量具有增强机械性能的环氧聚合物。固态Li ⁺离子电池是使用ERTCF制成的，其初始充放电容量为139/133 mAh g ^-1。此外，ERTCF的范围通过双极堆叠式电池设计扩展到了高压（> 8 V）固态Li ⁺离子电池。因此，可以预期，本研究将为高压固态电池的下一代增强陶瓷薄膜电解质的制备做出重要贡献。

更新日期：2020-06-25

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