Research for Paper Like Photorechargeable Battery

类纸光充电电池的研究

• 批准号: 18560311
• 负责人: NOMIYAMA Teruaki
• 金额: $ 2.46万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560311/
• 关键词: pnhotorechargeable battery; titanium dioxide; carbon fiber; polyaniline; photocatalyst; conducting polymer; ubiquitous battery; nanocomposite; 電解酸化; 表面改質; 光蓄電池ペーバ

Aphotorechargeable battery (PRB)is a new device that can store electric energy by photoirradiation such as sunlight or surrounding light The PRB is supposed for a standalone power supply for ubiquitous electronics without electric charging and feeding wires. The photorechargeable electrode is composed of rechargeable materials with photocatalysts. The electrode is charged by ion doping or de-doping induced by photocatalytic redox reactions. For a primary study for photocharging processe, a composite of photocatalytic TiO_2 and rechargeable carbon fibers (CFs) was used. The purpose of this study is to improve the understanding of (1) the contribution of photoexcited holes, (2) the reaction between CFs and Li-ion and (3) the effect of chemical modification of CFs surface on photocharging process. Further, photorechargeable electrode using conducting polymer polyaniline (PANi) instead of CFs had been started to fabricate paper like PRB.The result for purpose 1 is that the photoexcited holes prompt desorption of solvates around Li-ions resulting in reduction of activation energy for photocharging. For purpose 2 and 3, seventy percent of the photoexcited carriers generated within TiO_2 was lost in photocharging process from quantitative analysis for amount of incident photons, stored electrons and photoexcited holes on electrode surface. These results show the key to improve the performance of PRB is to reduce the photoexcited carrier loss that is supposed to occur at interface between TiO_2 and recharging material.On TiO_2/PANi electrode, photocharged quantity was drastically increased up to 100 times to one of TiO_2/CFs by composing TiO_2 and PANi in nano-level. This is because TiO_2/PANi nanocomposite has huge area of contact between TiO_2 and PANE These results show the key to improve the performance of PRB is to reduce the photoexcited carrier loss that is supposed to occur at interface between photocatalyst and recharging material.

Aphotorecharged Battery（PRB）是一种新设备，可以通过光照射（例如阳光或周围的光）来存储电源，PRB应该用于无效电子设备的独立电源，而无需电动充电和喂食电线。可获得的电极由带有光催化剂的可充电材料组成。电极通过光催化氧化还原反应引起的离子掺杂或去兴奋剂充电。对于用于光电过程的主要研究，使用了光催化TIO_2和可充电碳纤维（CFS）的复合材料。这项研究的目的是提高对（1）光激发孔的贡献，（2）CFS和锂离子之间的反应以及（3）CFS表面化学修饰对摄影过程的影响。此外，使用导电聚合物聚苯胺（PANI）而不是CFS的光电气化电极已经开始制造纸，例如PRB等纸张。结果1是，光激发孔促使液体周围的溶剂溶液解吸，从而减少激活能量的摄影能量。对于目的2和3，在TIO_2中生成的光激发载体中有70％的摄影过程中丢失了来自定量分析的量，用于电极表面上的入射光子，存储的电子和光激发孔。这些结果表明，提高PRB性能的关键是，在TiO_2和充电材料之间，该载流子损失应在tio_2/pani Electerode之间发生在接口上，通过在Nano elevel In nano elede In nano elede Couse_2/cfs组成TiO_2/CF中，摄影量急剧增加了100倍。这是因为TIO_2/PANI纳米复合材料在TIO_2和PANE之间具有巨大的接触区域，这些结果表明，提高PRB性能的关键是减少应在光催化剂和充电材料之间界面发生的光激发载体损失。

项目成果

光励起CVD法による酸化チタン薄膜の作製

光激发CVD法制备氧化钛薄膜

• 发表时间: 2007
• 作者: H.HASEGAWA;R.SUMI;K.KASHIWAGI and H.IMAGAWA;S.Somekawa;S. Somekawa;S. Somekawa;村尾 聡;S. Murao;村尾聡;東 章敏
• 通讯作者: 東 章敏

Optical in-situ Observation of Photocharging Process on TiO_2/CFs Electrode

TiO_2/CFs电极光充电过程的光学原位观察

• 发表时间: 2006
• 作者: Fujiyoshi;T.;藤吉 孝則;H. Hisano;藤吉 孝則;K. Yamashita;Y. Hayafuchi
• 通讯作者: Y. Hayafuchi

酸化チタン/グラファイトナノファイバ薄膜電極の光蓄電性

二氧化钛/石墨纳米纤维薄膜电极的光存储性能

• 发表时间: 2007
• 作者: H.HASEGAWA;R.SUMI;K.KASHIWAGI and H.IMAGAWA;S.Somekawa;S. Somekawa;S. Somekawa;村尾 聡;S. Murao;村尾聡;東 章敏;神川 隆博;A. Higashi;T. Kamikawa;神川 隆博;染川 正一;T. Kamikawa;S. Somekawa;堀江 雄二
• 通讯作者: 堀江 雄二

Photorechargeability of TiO_2 Thin Films on Graphite Nanofibers Prepared by PLD Method

PLD法制备石墨纳米纤维TiO_2薄膜的光充电性能

• 发表时间: 2007
• 作者: H.HASEGAWA;R.SUMI;K.KASHIWAGI and H.IMAGAWA;S.Somekawa;S. Somekawa;S. Somekawa;村尾 聡;S. Murao;村尾聡;東 章敏;神川 隆博;A. Higashi;T. Kamikawa;神川 隆博;染川 正一;T. Kamikawa
• 通讯作者: T. Kamikawa

Photorechargeable Property of a Composite Electrode of Porous TiO_2 and Polyaniline

多孔TiO_2与聚苯胺复合电极的光充电性能

• 发表时间: 2007
• 作者: H.Haruta;T.Fujiyoshi et al.;K. Aminaka
• 通讯作者: K. Aminaka