Datasheet
使用指南 Application Guidelines
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Index
使用指南 Application Guidelines
此檔將提供電容器 (EDLC) 基本應用開發指南。若在開發使用過程中遇到問題且在此文件中找不到相
關解決方案,請直接與我們聯系。
This document provides basic guidelines for application development using capacitors, also known as EDLC.
If questions arise during your development process and are not answered in the document, please contact us
directly.
壽命 Life Time
EDLC具有二次電池更長久的壽命,但是其壽命也不是無限長的。EDLC基本的壽命終止失效模式
為等效串聯電阻 (ESR) 升高和/或容量的降低。實際的壽命終止標准取決於應用要求。長期置於高
溫下,高電壓和超電流將會導致ESR升高和容量降低。這些參數的降低將可延長超級電容器的壽
命。一般來說,圓筒型EDLC具有與電解電容器相類似的搆造,有電解液、鋁殼和膠粒。多年使用后,
EDLC內電解液也會干涸,如同電解電容器一樣,導致ESR升高,壽命終止。
EDLC has a longer life time than secondary batteries, but their life time is not infinite. The basic end-of-
life failure mode for an EDLC is an increase in equivalent series resistance (ESR) and/or a decrease in
capacitance. The actual end-of-life criteria are dependent on the application requirements. Prolonged
exposure to elevated temperatures, high applied voltage and excessive current will lead to increased ESR and
decreased capacitance. Reducing these parameters will lengthen the life time of a supercapacitor. In general,
cylindrical EDLC have a similar construction to electrolytic capacitors, they have a liquid electrolyte inside an
aluminum can sealed with a rubber bung. Over many years, the EDLC will dry out, similar to an electrolytic
capacitor, causing an increase in ESR and eventually end-of-life.
電壓 Voltage
EDLC是有額定的推荐工作或使用電壓的。電壓值是基於其在最高額定溫度下最長壽命來設定的。
如果使用電壓超出了推荐電壓,其結果將會導致壽命縮短。如果電壓持續過高,EDLC內將會產生
氣體,導致漏液或防爆閥破裂。但EDLC是可以承受短期過電壓的。
EDLC are rated with a nominal recommended working or applied voltage. The values provided are set for long
life at their maximum rated temperature. If the applied voltage exceeds the recommended voltage, the life time
will be reduced. If the applied voltage is excessive for a prolonged time period, gas generation will occur inside
the EDLC and may result in leakage or rupture of the safety vent. However, short-term over voltage can usually
be tolerated by the EDLC.