| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.931 |
| 발표분야 |
재료 |
| 제목 |
Synthesis and electrochemical properties of Si/PEDOT anode materials |
| 초록 |
The carbonaceous materials as anode for lithium secondary batteries are widely used because of their excellent durability. However, low energy density of the material is main problem in application at bigger and more powerful devices. This study focused on enhancing performances of metal-conducting polymer composite anode. Si(0)/Poly(3,4-ethylenedioxythio-phene)(PEDOT) nanocomeposites were prepared by in-situ oxidative polymerization. To prepare these nanocomposites, Si(IV) metals were reduced as state of Si(0) by using sodium hydride as a metal reducing agent, and stabilized by t-BuOH stabilizer in the mixed solution. Si(0)/PEDOT nanocomposite was obtained by polymerizing to drop EDOT monomer into above mixed solution and to add cerium sulfate as an oxidant afterward. This process indicates on how well metal nanoparticles distribute to the polymer chain. Three nanocomposites samples were prepared as 100:0, 70:30, and 70:30 according to the ratio of Si(0) toPEDOT by weight percent. Si(0) nanoparticles in the nanocomposites were not only well-reduced as neutral state but also well-distributed in polymer chain. |
| 저자 |
주동혁1, 박석환2, 정홍련3, 이완진1
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| 소속 |
1전남대, 2Alan MacDiarmid Energy Research Institute, 3Chonnam National Univ. |
| 키워드 |
Lithium secondary battery; Anode; Silicon; PEDOT
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| E-Mail |
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| 원문파일 |
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