24小时热门版块排行榜

返回列表

当前主题已经存档。

angellove3626

木虫 (著名写手)

应助: 0 (幼儿园)
金币: 4889.9
散金: 386
红花: 1
沙发: 1
帖子: 1732
在线: 80.3小时
虫号: 756086
注册: 2009-04-23
性别: GG
专业: 有机分子功能材料化学

[交流] 【求助完毕】帮忙润色（逻辑、语法）满意追加金币

Organic compounds have long been sought as positive electrodes for lithium rechargeable batteries because they frequently offer a significant advantage over inorganic materials, e.g. PAQS[1] provides a promising energy-storage system by linking the anthraquinone unit with the thioether bond. Proves its high utilization and high coulomb efficiency, excellent cyclability and satisfactory rate capability(198 mAh g-1). and Minh Chau Pham’s PANQ[2,3], which has nearly 300 mAh g-1 at the beginning of cycling, corresponds nicely to the theoretical value calculated for the polymer. Novak and Dietrich
reported that PEDOT was utilized as cathode activematerial in 0.1M Bu4NPF6/PC and 0.1MBu4NPF6/CH2Cl2 and a high specific capacity of 140 mAh g-1 was obtained, which was higher than other conducting polymers, such as PAni, PPy, PPP, PT and PDTT [4,5].
In the past twenty years, many polymers have been investigated as cathode materials for lithium batteries. The most favored structure of applicable polymers is based on S-S bonds[6,8]. Unfortunately, although they have high theoretical capacity (〉300 mAh g-1), the utilization ratio is usually low and the cyclability is very poor, mainly due to the slow reaction kinetics and unwanted dissolution in the nonaqueous electrolyte.These problems seem impossible to be eventually solved through structure optimization. So we have tried to develop new energy storage systems not based on S-S bonds.In this paper, we demonstrate a novel easy-synthesized polymer named 1,4,5,8-tetra -hydroxy-Hexylbenzo-tetraquinone, which shows high specific capacity and cyclability. This article develops the new energy from the point of view, make HBTQ applies to rechargeable lithium batteries, thus supplies the information for lithium battery's development.

[ Last edited by qingshaojun0823 on 2009-9-10 at 14:38 ]

回复此楼

» 猜你喜欢

生命口C13面上会评时间已经有11人回复
内心匮乏已经有16人回复
生命口面上会评结束了吗大家有知道结果吗？现在还没有结果正常不？已经有9人回复
有机物中金属离子降到1ppm以下，有什么好的方法吗？用过有机溶剂重结晶还是降不下来已经有4人回复
投英文期刊如何查重已经有6人回复
不要再数国自然申请书的 filecode 的分隔符个数了已经有21人回复
伯胺上甲基求助已经有7人回复
跨出版社商投稿已经有5人回复
5个%2F，非固定段22个字母已经有7人回复
生生命学部会评已经有4人回复

用心改变生活

1楼 2009-08-31 20:40:52

已阅关注TA 给TA发消息送TA红花 TA的回帖

goodtimega

铁杆木虫 (著名写手)

翻译EPI: 4
应助: 1 (幼儿园)
金币: 8138.7
散金: 570
红花: 1
帖子: 1489
在线: 527.5小时
虫号: 820248
注册: 2009-08-02
专业: 高分子材料结构与性能

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
angellove3626(金币+10,VIP+0):3ks，感觉不错，我再自习琢磨一下 9-1 19:54
linghanyuan(金币+1,VIP+0):谢谢交流 9-3 09:14
angellove3626(金币+5,VIP+0):非常感谢 9-5 22:22

Organic compounds serve as positive electrodes for lithium rechargeable batteries advantageous over inorganic materials. Prototype examples include PAQS[1] that provides a promising energy-storage system by linking the anthraquinone unit with the thioether bond with high utilization and high coulomb efficiency, excellent cyclability, and satisfactory rate capability (198 mAh g-1). as well as Minh Chau Pham’s PANQ[2,3] that have nearly 300 mAh g-1 at the beginning of cycling, corresponding to the theoretical value calculated for the polymer. Novak and Dietrich reported that PEDOT was utilized as cathode activematerial in 0.1M Bu4NPF6/PC and 0.1MBu4NPF6/CH2Cl2 with a high specific capacity of 140 mAh g-1, which was higher than alternative conducting polymers, such as PAni, PPy, PPP, PT and PDTT [4,5].

During the past twenty years, a wealth of polymers have been investigated as cathode materials for lithium batteries. The most favored structure of applicable polymers is based on S-S bonds [6,8]. While they have high theoretical capacity (〉300 mAh g-1), the utilization ratio is typically low and the associated cyclability is very poor, mainly due to the slow reaction kinetics and undesired dissolution in the nonaqueous electrolyte. These issues seem formidable through structure optimization. Here we report our attempts in developing new energy storage systems other than based on S-S bonds. In this paper, we demonstrate a novel easy-to-be-synthesized polymer referred to as 1,4,5,8-tetra -hydroxy-Hexylbenzo-tetraquinone. The polymer shows high specific capacity and cyclability, and is a promising new energy material. As it can be applied to rechargeable lithium batteries, HBTQ is important for the associated development.