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小戛劍生新蟲(chóng) (正式寫(xiě)手)
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[求助]
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如題，水平不錯(cuò)的，中英文皆可。必有紅花相贈(zèng)。 [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |
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zqflotu
木蟲(chóng) (小有名氣)
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【答案】應(yīng)助回帖
感謝參與，應(yīng)助指數(shù) +1
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http://xxtcl.sxicc.ac.cn/CN/abstract/abstract9110.shtml 綜合評(píng)述 碳質(zhì)材料在鋰硫電池中的應(yīng)用研究進(jìn)展 張 強(qiáng), 程新兵, 黃佳琦, 彭翃杰, 魏 飛 清華大學(xué)化學(xué)工程系,綠色反應(yīng)工程與工藝北京市重點(diǎn)實(shí)驗(yàn)室,北京100084 摘要： 隨著石墨負(fù)極的成功商用,鋰離子電池在智能手機(jī)、筆記本電腦等便攜式電子設(shè)備中已得到廣泛的應(yīng)用。經(jīng)過(guò)20 多年的發(fā)展,現(xiàn)有基于嵌鋰化合物正極的鋰離子電池已接近其理論容量,但仍不能滿足高速發(fā)展的電子工業(yè)和新興的電動(dòng)汽車等行業(yè)的要求,尋找具有更高能量密度的電池系統(tǒng)迫在眉睫。鋰硫電池系統(tǒng)具有極高的理論能量密度,在多種儲(chǔ)能系統(tǒng)中是最具潛力的一種二次電池。但是鋰硫電池中也存在硫的電導(dǎo)率極低、多硫化物溶解遷移等問(wèn)題,使其在走向?qū)嵱没倪^(guò)程中遇到許多困難。納米碳質(zhì)材料在新型鋰硫電池的開(kāi)發(fā)過(guò)程中處于重要地位,通過(guò)納米炭的引入,可以獲得導(dǎo)電復(fù)合正極材料,控制多硫化物的穿梭,從而有望實(shí)現(xiàn)正極硫材料的高效利用。綜述了基于納米炭鄄硫復(fù)合正極材料,尤其是碳納米管、石墨烯、多孔炭以及其雜化物等材料復(fù)合的電極,分析其結(jié)構(gòu)與鋰硫電池性能的關(guān)系,并展望鋰硫電池的發(fā)展方向。 關(guān)鍵詞： 鋰硫電池 碳硫復(fù)合正極 納米炭 碳納米管 石墨烯 多孔炭 雜化物 |
小戛劍生2樓2014-09-27 00:15:32
455146091
木蟲(chóng) (正式寫(xiě)手)
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【答案】應(yīng)助回帖
感謝參與，應(yīng)助指數(shù) +1
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Recent advances in lithiumesulfur batteries Lin Chen, Leon L. Shaw ABSTRACT :Lithium-sulfur (Li-S) batteries have attracted much attention lately because they have very high theoretical specific energy (2500 Wh kg-1), five times higher than that of the commercial LiCoO2/graphite batteries. As a result, they are strong contenders for next-generation energy storage in the areas of portable electronics, electric vehicles, and storage systems for renewable energy such as wind power and solar energy. However, poor cycling life and low capacity retention are main factors limiting their commercialization. To date, a large number of electrode and electrolyte materials to address these challenges have been investigated. In this review, we present the latest fundamental studies and technological development of various nanostructured cathode materials for LieS batteries, including their preparation approaches, structure, morphology and battery performance. Furthermore, the development of other significant components of Li-S batteries including anodes, electrolytes, additives, binders and separators are also highlighted. Not only does the intention of our review article comprise the summary of recent advances in LieS cells, but also we cover some of our proposals for engineering of LieS cell configurations. These systematic discussion and proposed directions can enlighten ideas and offer avenues in the rational design of durable and high performance LieS batteries in the near future |
» 本帖已獲得的紅花（最新10朵）
3樓2014-09-27 08:16:40
455146091
木蟲(chóng) (正式寫(xiě)手)
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【答案】應(yīng)助回帖
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Liquid electrolyte lithium/sulfur battery: Fundamental chemistry,problems, and solutions Sheng S. Zhang ABSTRACT:Lithium/sulfur (Li/S) battery has a 3e5 fold higher theoretical energy density than state-of-art lithiumion batteries, and research has been ongoing for more than three decades. However, the commercialization of Li/S battery still cannot be realized due to many problematic issues, including short cycle life,low cycling efficiency, poor safety and a high self-discharge rate. All these issues are related to the dissolution of lithium polysulfide (PS), the series of sulfur reduction intermediates, in liquid electrolyte and to resulting parasitic reactions with the lithium anode and electrolyte components. On the other hand, the dissolution of PS is essential for the performance of a Li/S cell. Without dissolution of PS, the Li/S cell cannot operate progressively due to the non-conductive nature of elemental sulfur and its reduction products. In this review article, we start with the fundamental chemistry of elemental sulfur in order to discuss the problems and solutions of liquid electrolyte Li/S battery. |
» 本帖已獲得的紅花（最新10朵）
4樓2014-09-27 08:19:56
小戛劍生
新蟲(chóng) (正式寫(xiě)手)
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5樓2014-09-27 09:06:03
小戛劍生
新蟲(chóng) (正式寫(xiě)手)
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6樓2014-09-27 09:06:14
小戛劍生
新蟲(chóng) (正式寫(xiě)手)
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7樓2014-09-27 09:06:23
fubsd
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【答案】應(yīng)助回帖
感謝參與，應(yīng)助指數(shù) +1
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這個(gè)必須推薦Chem Rev 上的最新一篇綜述啊 http://pubs.acs.org/doi/abs/10.1021/cr500062v Rechargeable Lithium–Sulfur Batteries Arumugam Manthiram *, Yongzhu Fu , Sheng-Heng Chung , Chenxi Zu , and Yu-Sheng Su Materials Science and Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States Chem. Rev., Article ASAP DOI: 10.1021/cr500062v Publication Date (Web): July 15, 2014 Copyright © 2014 American Chemical Society |
8樓2014-09-27 19:44:47
solosoull
木蟲(chóng) (正式寫(xiě)手)
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【答案】應(yīng)助回帖
感謝參與，應(yīng)助指數(shù) +1
|
Li–O2 and Li–S batteries with high energy storage Peter G. Bruce1*, Stefan A. Freunberger1, Laurence J. Hardwick1† and Jean-Marie Tarascon2 Li-ion batteries have transformed portable electronics and will play a key role in the electrification of transport. However, the highest energy storage possible for Li-ion batteries is insufficient for the long-term needs of society, for example, extended-range electric vehicles. To go beyond the horizon of Li-ion batteries is a formidable challenge; there are few options. Here we consider two: Li–air (O2) and Li–S. The energy that can be stored in Li–air (based on aqueous or non-aqueous electrolytes) and Li–S cells is compared with Li-ion; the operation of the cells is discussed, as are the significant hurdles that will have to be overcome if such batteries are to succeed. Fundamental scientific advances in understanding the reactions occurring in the cells as well as new materials are key to overcoming these obstacles. The potential benefits of Li–air and Li–S justify the continued research effort that will be needed. Recent advances in lithiumesulfur batteries Lin Chen a, b, Leon L. Shaw a, b, * 鋰硫電池最新研究進(jìn)展* 萬(wàn)文博蒲薇華＊＊ 艾德生 ( 清華大學(xué)核能與新能源技術(shù)研究院北京100084) 摘要鋰硫電池的理論能量密度為2600 Wh /kg，是鋰離子二次電池的3—5 倍，是極具應(yīng)用前景的電 化學(xué)儲(chǔ)能體系，近年來(lái)引起了研究人員的廣泛關(guān)注。人們?cè)诰S持電極結(jié)構(gòu)穩(wěn)定性、提高硫的利用率和加強(qiáng)電 池循環(huán)壽命等方面開(kāi)展了大量的研究工作。本文綜述了鋰硫電池的最新研究進(jìn)展，從硫正極材料復(fù)合改性、 不同種類電解質(zhì)、鋰負(fù)極保護(hù)、電池結(jié)構(gòu)設(shè)計(jì)等4 個(gè)方面進(jìn)行了總結(jié)，分析了影響鋰硫電池比容量、循環(huán)穩(wěn)定 性的主要因素，最后展望了鋰硫電池未來(lái)的發(fā)展趨勢(shì)。 關(guān)鍵詞鋰硫電池硫基復(fù)合正極電解質(zhì)鋰負(fù)極循環(huán)壽命 不會(huì)上傳附件，不好意思 |
» 本帖已獲得的紅花（最新10朵）
9樓2014-09-28 12:55:46
小戛劍生
新蟲(chóng) (正式寫(xiě)手)
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10樓2014-09-28 18:04:04
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