石墨烯负载硫纳米颗粒复合材料在锂硫电池中的应用

来源 :中国化学会第十七次全国电化学大会 | 被引量 : 0次 | 上传用户：hunyuan

【摘要】

：

锂硫电池是能源危机和环境问题日趋严重的今天应运而生的产物.锂硫电池是以硫为正极,金属锂为负极,硫正极作为一种基于“转换反应”而非“嵌入脱出反应”电极材料,具有1672 mAh/g的理论比容量,为目前所知的正极材料中最高(是尖晶石锰酸锂的11.3倍,磷酸铁锂的9.8倍,钴酸锂的6.1倍)[1],并且硫还具有来源广泛、毒性低、价格低廉、环境友好等优点,因此单质硫是一种非常有吸引力的二次锂电池的正极活性

【作者】

：

董字敏张俊杜高辉

【机构】

：

浙江师范大学物化所,浙江,金华,321000

【出处】

：

中国化学会第十七次全国电化学大会

【发表日期】

：

2013年2期

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

RELEASE CHARACTERISTICS OF SO2 FROM MICROENCAPSULATED SULPHITE AS AN ANTICORROSION PRESERVATIVE AGEN

The microencapsulation of sulphite was studmd by phase separation method and dissolve dispersible condensation method,using sodium pyrosulfite as core material,ethylcellulose (EC) and paraffin & polye

会议

SHELF-LIFE OF MANGO (MANGiFERA INDICA L.UBA) JUICE PROCESSED BY HIGH HIDROSTATIC PRESSURE

会议

EDIBLE COATING IN MINIMALLY PROCESSED PUPUNHA HEART PALM:SENSORY QUALITY DURING THE STORAGE

会议

INFLUENCE OF STORAGE TEMPERATURE ONTHE PHYSlCO-CHEMICAL CHARACTERIST ICS AND LEVELS OF BIOACTIVE AMI

会议

SHELF LIFE STABILITY OF CALIFORNIA ALMOND PRODUCTS

California (CA) almonds,a healthy and popular nut with low moisture content and high level of natural antioxidants,are well known for their long shelf life potential.Recently,the Almond Board of Calif

会议

POSTHARVEST TECHNOLOGIES EFFECTS ON THE QUALITY AND FUNCTIONAL PROPERTIES OF POMEGRANATE (PUNICA GRA

Pomegranate is a fruit grown on some parts of Mexico and is used for some traditional dishes (chiles en nogada,ponche,syrups,wine) but its potential value as functional food is unknown.Until now,no in

会议

THE EFFECT OF DIFFERENT STORAGE CONDITIONS ON THE OXIDATIVE STABILITY OF OFALGAL OIL

Algal oil could be easily oxidized in storage because its docosahexaenoic acid (DHA) was a highly unstable ω-3 PUFA.The effects of storage conditions on the oxidative stability of algal oil were inves

会议

溶胶-凝胶法制备富锂层状锂离子电池正极材料的工艺研究

Lithium-rich layered cathode material Li1.2Mn0.54Ni0.13Co0.13O2 is synthesized by an optimized sol-gel method followed by two step calcining process.The X-ray diffraction pattern shows that the Li1.2M

会议

烧结气氛对Li(Ni0.6Co0.2Mn0.2)O2正极材料性能的影响

采用共沉淀法制备了Ni0.6Co0.2Mn0.2(OH)2前驱体,分别在空气气氛、氧气气氛下进行烧结.SEM结果表明,氧气气氛下烧结的样品G6-O单晶表面成分分布均匀,电化学性能较好,在常温2.7-4.2V范围内0.2C首轮放电容量达163.3mAh/g,50轮循环容量保持率为98.8％；而空气气氛烧结得到的样品G6-A表面Ni分布不均匀,其首轮放电容量较低(155.8mAh/g),50轮循环容量

会议

湿混法钴掺杂改性LiMn2O4研究

尖晶石型LiMn2O4具有电化学性能好、资源丰富成本低以及对环境友好等优点,因此是比较受关注的锂电正极材料.其制备方法主要有固相法、共沉淀法、水热合成法、自模板法等.李敏等[1]采用固相法合成尖晶石锰酸锂,常温下初始放电比容量达122mAh/g,循环20次后,容量保持率为96％.

会议

石墨烯负载硫纳米颗粒复合材料在锂硫电池中的应用

与本文相关的学术论文