Other

Matsushita Electric Industrial Co., Ltd.

Mitsui Petrochemical Industries, Ltd.

Satoko Mita

Hideki Shimamoto

Yoshinori Takamuku

Tsuneaki Koike

Masayoshi Watanabe

Keiichi Yokoyama

Akio Hiwara

Masahiro Toriida

Takeshi Ishitoku

Takako Sasano

Tatsuyoshi Ishida

Non-aqueous electrolytic solution for capacitor and capacitor containing non-aqueous electrolytic solution

Non-aqueous electrolytic solutions for capacitor which release little gas and have excellent potential window of electrochemical stability, and which enable capacitors to have excellent charging/discharging cycle properties and safety performance, and capacitors containing such non-aqueous electrolytic solutions. Such non-aqueous electrolytic solutions for capacitors include an electrolyte selected from the group consisting of ammonium salts, phosphonium salts and amidine salts and a solvent for containing at least one phosphoric ester represented by the following formula (I):

Electrolytic solution for capacitor and capacitor

The novel acrylic ester, allyl ether and allyl carbonate of the present invention are characterized by having the structures represented by the following general formulae (I) to (IV): The above acrylic ester, allyl ether and allyl carbonate are used as a starting monomer which forms a polymer matrix for use in a polymeric solid electrolyte. The novel polymer of the present invention comprises structural units derived from at least one compound selected from a group of the compounds represented by the above general formulae (I) to (IV). The polymeric solid electrolyte comprising the above novel polymer as a polymer matrix exhibits high ionic conductivity and is chemically stable.

Acrylic ester, novel allyl ether, novel allyl carbonate, acrylic ester

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Sodegaura, Japan

Satoko Mita