学術雑誌論文

本学関連学会

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電気材料技術雑誌. 2019, 28(1), p. 26-34

日本語

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2019-11-20

An electric double layer capacitor (EDLC) is a capacitor that uses an electric double layer generated at the interface between an electrode and an electrolyte. The EDLC has lower energy density than secondary batteries, but has features such as rapid charge and discharge and reduced deterioration due to charge and discharge. The authors are developing a charcoal EDLC that uses activated carbon activated by charcoal and a water electrolyte. To increase the capacity, it is necessary to connect EDLC cells (cells) in series and parallel. In the case of series connection, if the shared voltage is not uniform, the electrolysis voltage of the water electrolyte (1.23 V) may be exceeded, and the cell may deteriorate. When cells are connected in series, an overvoltage prevention circuit is required so as not to exceed a predetermined shared voltage (1.0 V) even if the electrostatic capacity is different. It is reported the results of a prototype of an overvoltage prevention circuit for the charcoal EDLC.

10.18910/76115

76115

木炭蓄電器に用いる過電圧防止回路

電気材料技術懇談会

日本語

2019-11-20

電気材料技術雑誌

28

1

26

34

https://hdl.handle.net/11094/76115

10.18910/76115

https://doi.org/10.18910/76115