Paste Rohan, Chen Yu-Te, Borde Krishna, Dhage Atul, Sun Shih-Sheng, Lin Hong-Cheu, Chu Chih Wei
Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan (ROC).
Research Center for Applied Sciences, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei, 11529, Taiwan (ROC).
Small. 2024 Aug;20(35):e2311382. doi: 10.1002/smll.202311382. Epub 2024 May 2.
Solid-state batteries (SSBs) have the potential to revolutionize the current energy storage sector. A significant portion of the current development of electric vehicles and the electrification of various appliances relies on Lithium (Li)-ion batteries. However, future energy demands will require the development of stronger and more reliable batteries. This report presents a novel solid state electrolyte (SSE) composed of a self-healing composite solid polymer electrolyte (CSPE) matrix and aluminum-doped (LiLa)TiAlO (A-LLTO) nanofillers. The CSPE contains Jeffamine ED-2003 monomer, Benzene-1,3,5-tricarbaldehyde (BTC) crosslinker dissolved in a 1:1 ratio of Dimethylformamide (DMF) to LiPF, and a certain amount (x) of A-LLTO nanofillers (x = 5, 7.5, 10, 12.5%). A CSPE containing x-amount of A-LLTO fillers (referred to as CAL-x%) demonstrates excellent ion-conducting properties and stable battery performance. The CAL-10% demonstrates 1.1 × 10 S cm of ionic conductivity at room temperature (RT). A-LLTO nanofillers dispersed uniformly within the polymer matrix form a percolation network, which is believed to improve ionic conductivity and the diffusion of Li ions. The CR-2032 cell, consisting of LiFePO (LFP)║CAL-10%║Li, at RT offers an initial discharge capacity of ≈165 mAh g at 0.1C rate for 120 cycles with 98.85% coulombic efficiency (C.E.).
固态电池（SSB）有潜力彻底改变当前的储能领域。当前电动汽车的发展以及各种电器的电气化很大程度上依赖于锂离子电池。然而，未来的能源需求将需要开发更强大、更可靠的电池。本报告介绍了一种新型固态电解质（SSE），它由自修复复合固体聚合物电解质（CSPE）基质和铝掺杂的（LiLa）TiAlO（A-LLTO）纳米填料组成。CSPE包含Jeffamine ED-2003单体、以1:1比例溶解在二甲基甲酰胺（DMF）与LiPF中的苯-1,3,5-三甲醛（BTC）交联剂，以及一定量（x）的A-LLTO纳米填料（x = 5、7.5、10、12.5%）。含有x量A-LLTO填料的CSPE（称为CAL-x%）表现出优异的离子传导性能和稳定的电池性能。CAL-10%在室温（RT）下表现出1.1×10 S cm的离子电导率。均匀分散在聚合物基质中的A-LLTO纳米填料形成了一个渗流网络，据信这改善了离子电导率和锂离子的扩散。由LiFePO（LFP）║CAL-10%║Li组成的CR-2032电池在室温下，以0.1C倍率进行120次循环时，初始放电容量约为165 mAh g，库仑效率（C.E.）为98.85%。
