【作者】 何献文；

【导师】 刘建华；

【作者基本信息】 天津大学 ， 应用化学， 2004， 硕士

【摘要】 作为一种新型高能锂电池,Li/FeS₂电池有着十分广阔的应用前景,目前国内外对Li/FeS₂电池的研究和开发都给予了极大的关注。Li/FeS₂电池采用与其它一次锂电池相似的液态电解液作为离子在正负极之间传输的介质。Li/FeS₂电池具有质量轻,能量高、大电流放电能力强等特点。对正极材料的处理工艺进行了研究,对处理前后的结构进行了分析。对正极材料进行了深入的研究,发现通过一定制度的处理使二硫化铁电特性有所改观。同时对放电前后电池正极物质的变化进行了一定的分析。设计了Li/FeS₂电池的制造工艺,研究了各种正极制造方法对电池性能的影响。对不同正极制造工艺的电池进行了全面测试,并根据测试结果进行分析。对工艺研究中出现的技术难点进行了探讨。重点研究了导电剂、电解液选择及加液量对Li/FeS₂电池的性能影响。研究了电池容量、内阻与加液量的关系以及不同加液量电池的容量分布情况,优化了AA型Li/FeS₂电池的精确加液量。对AA型Li/FeS₂电池进行性能检测。在不同放电制度下对电池性能进行了研究,对电池的电化学性能及安全性能进行考核与评价,各项指标合格。更多还原

【Abstract】 At the present time lithium-iron disulfide battery as a new-style lithium batteryhas been drawn close attention because of their high-energy. It’s electrolyte is liquidas liquid state lithium batteries. Lithium-iron disulfide battery has many excellentcharacteristics including light weight、high energy and high heavy-current capacity.In the article,the treation technics of anode material was studied and the structureof anode material before and after treation was analyzed.In order to makeunderstantion of anode material,the structure and electrochemical performance ofFeS2 with different crystal and form.According to the research ,the electrochemicalperformance of FeS2 was improved after treation.Then the variety in cathode materialwas analyzed before and after discharge.The manufacture technics of Li/FeS₂ battery was designed.The influence onbattery performance of cathode manufacturing technics was studyed. According to theanalysis of batteries made by different cathode manufacturing technics,the merit andshortcoming of different cathode manufacturing technics were investigated.The technical difficulties which were found in the technics research.Theemphases of research were the influence of conduct electricity and the electrolyte onLi/FeS₂ battery performance.The relations between the battery capacity and inner resistance with the additiveamount of electrolyte were studied. The distributing of battery capacity of differentadditive amount was investigated. On the basis of these, the best electrolyte content isconfirmed.The performance of AA type Li/FeS₂ battery was detected. The performance ofAA type Li/FeS₂ battery was studyed under different discharge condition.Theelectrochemical performance and the safety performance of the batteries wereexamined and valuded.The test results were eligible.更多还原