We present the development and characterization of a high-stability, multi-material, multi-thickness tape-drive target for laser-driven acceleration at repetition rates of up to 100 Hz. The tape surface position was measured to be stable on the sub-micrometre scale, compatible with the high-numerical aperture focusing geometries required to achieve relativistic intensity interactions with the pulse energy available in current multi-Hz and near-future higher repetition-rate lasers ( $>$ kHz). Long-term drift was characterized at 100 Hz demonstrating suitability for operation over extended periods. The target was continuously operated at up to 5 Hz in a recent experiment for 70,000 shots without intervention by the experimental team, with the exception of tape replacement, producing the largest data-set of relativistically intense laser–solid foil measurements to date. This tape drive provides robust targetry for the generation and study of high-repetition-rate ion beams using next-generation high-power laser systems, also enabling wider applications of laser-driven proton sources.

固体氧化物电池（Solid Oxide Cell，SOC）是高温电解水蒸气制氢和氢燃料利用的核心器件。为了避免SOC批量制备过程中大量有机溶剂的使用，本文开发了两种不同组分的水系流延浆料，并进行了浆料的分散状态与稳定性的定量分析。利用一次流延450 μm左右的NiO-YSZ支撑体薄膜，丝网印刷氢电极功能层和电解质层、阻隔层和氧电极层制备10 cm×10 cm大尺寸全电池。通过扫描电子显微镜（Scanning Electron Microscope，SEM）分析浆料状态对薄膜成型的微观结构的影响，并利用伏安特性（I-V）和电化学阻抗（Electrochemical Impedance Spectroscopy，EIS)研究了全电池的电化学性能。以氢为燃料的固体氧化物燃料电池(Solid Oxide Fuel Cell，SOFC)模式下，最大发电功率为0.36 W·cm^-2（750 ℃ @ 0.7 V），在固体氧化物电解水蒸气（Solid Oxide Electrolysis Cell，SOEC）模式中，电解电流密度可以达到-0.68 A·cm^-2（750 ℃ @ 1.3 V）。因此，该水系流延浆料的开发与应用，使得SOC的工业批量生产过程更环保。

致密陶瓷透氧膜因在氧气制备和涉氧化工过程中的潜在重要应用而备受关注。本研究采用相转化流延/叠层/烧结工艺制备了三明治结构Gd_0.1Ce_0.9O_2-δ-La_0.6Sr_0.4FeO_3-δ(GDC-LSF)双相复合陶瓷透氧膜, 其中部为起氧分离作用、厚度80 μm的致密功能层, 两侧为厚度420 μm的直孔结构支撑层。采用浸渍法在支撑层内壁修饰Nd₂NiO_4+δ(NNO)纳米颗粒。在膜的一侧通入空气, 另一侧通入氦气作为载气, 测得900 ℃时氧渗透通量高达1.53 mL·cm^-2·min^-1。将氦气切换为CO₂, 测得氧渗透通量为0.6 mL·cm^-2·min^-1, 氧渗透在长达90 h的时间内保持稳定。该透氧膜经历70余次热循环(800~900 ℃)后仍保持完好。本研究表明: 直孔三明治结构GDC-LSF透氧膜具有良好的氧渗透性能、化学稳定性和热机械性能, 有望用于氧气分离和富氧燃烧/CO₂捕获。