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1、固態電容器用電解質報告 導電高分子材料開發及其應用 Arthur 2007,1,2 研究所 鋁電解電容器及其元件 Manufacturing process of elements 鋁電解電容結構圖 電容器產品趨勢 須求特性: 輕薄短小(可攜式3C產品:cell phone; PDA; DSC etc.) 高頻更低阻抗 耐高溫長效壽命(105 oC 2000小時以上) 解決方向:固態電解質引用 固態及晶片化 Impedance-frequency characteristics 導電高分子材料導電高分子材料(PPY及及PEDOT)可可 滿足此特性須求滿足此特性須求 construction o
2、f an liquid aluminum electrolytic.capacitor Structure of solid electrolytic capacitor 鋁電解電容之進化鋁電解電容之進化 Electric conductivities of various electrolytes Electrolyte materials for electrolytic capacitors Cross-sectional SEM photograph of the etched and anodized aluminum foil electrode completely covere
3、d with electropolymerized polypyrrole: (A) polypyrrole layer; (B) etched layer of aluminum foil, and (C) core of etched aluminum foil. TEM photograph of etching pits of aluminum foil filled with electropolymerized polypyrrole. 核心元件之製作 導電高分子聚合引入泡棉 層狀之Al2O3中 捲繞式固態導電高分子電容器製作流程 晶片型固態 電容器示意 圖(Al及Ta型) 導電高
4、分子固態電容器產品例 捲繞型捲繞型 晶片型晶片型 日本商品化導電高分子應用產品及其時程(KRI, 2004) Bayer AG, Eur. Patent 339 340, 1988, 已量產化，專利2008到期?. 導電高分子單體導電高分子單體EDOT(固態電解質用固態電解質用)合成法合成法 Chemical polymerization of EDOT as developed by de Leeuw et al. a) Philips Electronics N.V., Eur. Patent Application No.PHN 14 385 EPP 1993. b) b) Philip
5、s Electronics N. V., Eur. Patent Application No. PHN 14 562 EP-P 1993. 固態電解質PEDOT常用聚合法(Philils 1993專利) PEDT/PSS blend (BAYTRON P). a) Bayer AG, Eur. Patent 440 957, 1991. b) Agfa Gevaert, Eur. Patent 564 911, 1993. c) Bayer AG, Eur. Patent 553 671, 1993. d) Bayer AG, Eur. Patent 686 662, 1995. e) Ba
6、yer AG, US Patent 5 792 558, 1996. Chemical polymerization of EDOT as developed by Bayer AG Bayer AG開發之開發之PEDOT/PSS 13% 水溶液水溶液 for 光電薄膜應用售價曾高達光電薄膜應用售價曾高達NT$100K/Kg Recent trends in the development of polymer solid electrolytic capacitor are summarized as follows :(電容用高分子固態電解質研發趨勢例電容用高分子固態電解質研發趨勢例) (
7、1). Further improvements of capacitors products, such as lower equivalent series resistance (ESR), more compact size, higher capacitance, thermal resistance, and higher voltage. (2). Technical developments mainly relating to the above improvements can be observed in recent papers and patents, as sum
8、marized in the following: (2-1) Application of new dopants. (2-2) Capacitor structures to reduce resistance. (2-3) Production methods, including polymerization methods. EX. 1. Matsushita Electronic Components (A) Poly(ethylenedioxythiophene) (PEDOT) which is doped with both a polymeric anion, shown
9、below, and a low molecular anion (naphthalene sulfonic acid), and the Al/Ta polymer capacitors using them. (B) The above polymeric anion was made from a phenoxy resin Enhanced thermal resistance and a lower ESR are the advantages of the capacitors EX. 2. Sanyo Electric Utilization of alkyldiphenyl e
10、ther sulfonates as the dopant of electroconductive polymers (PPy, PEDOT, etc.) in polymer electrolytic capacitors. Less dedoping at high temperatures and high humidity than conventional dopants, and thus improved stability and durability of the capacitors are the main advantage. EX. 3. Nippon Chemi-
11、Cons NP CAP Capacitors, Production methods of chip type Ta polymer capacitors. After chemical polymerization, sulphate ion of the oxidizer (the polymerization agent) is dedoped, then, another ion, such as a phosphate ion, alkylsulphate ion, or aromatic alkyl sulphate ion is doped, in order to enhanc
12、e the durability of the capacitor. EX. 4. Mitsui Chem. Polypyrrole (PPy) doped with a new dopant, m-fluorobenzene sulfonic acid derivative, and the Al/Ta polymer electrolytic capacitors using it. (For High resistance to heat and high humidity) Toyama Purechemical Ind. Production method for PEDOT whi
13、ch is doped with perfluoroalkylene sulfonic acid, and the capacitors using the PEDOT. (For Thermal resistance and low ESR) EX. 5. Tayca A. PEDOT, etc., doped with specific dopants, such as alkoxybenzene sulfonic acids, or tetrahydronaphthalene sulfonic acids, and the polymer electrolytic capacitors using them. (For Thermal resistance, and hot-wet durability) Note: 以上均為日本專利，已有案號，須外查詢 續續:(電容用高分子固態電解質研發趨勢例電容用高分子固態電解質研發趨勢例)
