摘要：High interfacial energy Li^(0)-electrolyte interface contributes to larger Li^(0) nucleation embryos and a more stable interface,so the interfacial energy is essential for highly reversible Li^(0) deposition/***,a high interfacial-energy artificial solid electrolyte interphase(SEI)with rich LiF embedded in lithiated poly-2-acrylamido-2-methylpropane sulfonic acid(PAMPS-Li)network is designed to realize favorable Li^(0) nucleation and rapid desolvation of Li+*** Li-F bonds in LiF(001)exhibit stronger ion-dipole interactions with Li atoms,offering higher interfacial *** the growth surface energy and total interfacial energy of Li^(0) are balanced,the high interfacial energy SEI with abundant LiF can promote the formation of larger Li^(0) nucleation *** addition,the PAMPS-Li with immobilized anions presents weaker interaction with Li^(0) and possesses higher polymer-Li interfacial energy,and its amide and sulfonic acid groups exhibit higher binding energies with Li^(+).Therefore,PAMPS-Li can easily promote the Li+to escape from the solvent sheath and weaken the desolvation energy *** highly reversible Li^(0) deposition behavior with restricted side reactions is achieved based on the synergistic modification of high interfacial energy SEI with *** importantly,lifespan of multi-layered Li^(0) pouch cell(330 Wh kg-1)with a low N/P ratio(1.67)is over 100 cycles,verifying its potential practical application.

摘要：根据上海软土地区电子厂房深基坑群工程已有设计支护形式,针对工期紧、邻近主厂房与基坑群同步施工的特点,分析应用新型HUW型钢组合钢板桩代替SMW工法桩挡土墙、拉锚式拉森钢板桩代替重力式水泥土挡墙,取消大量水泥土搅拌桩及冠梁混凝土,地下无残留水泥土污染物,不仅有利于地下环境保护和可持续发展,缩短基坑工程工期,还大大降低施工成本,体现了新型支护结构的工期和成本优势。