HYBRID CAPACITOR

• Main Authors: ARAKI TAKAMASA, MITSUYA KUNIHIRO, YAMAGUCHI SOICHI
• Format: Patent
• Language: English; Japanese
• Published: 01.06.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To provide a hybrid capacitor with a low resistance.SOLUTION: A hybrid capacitor comprises: a polarizable positive electrode; a negative electrode having a current collector and a coating layer on one or each face of the current collector; an organic solvent-based electrolytic solution containing a lithium salt; and a separator. The coating layer includes: a transition metal oxide capable of reversibly occluding and releasing lithium ions; a polymer binder; and a conductive material. The coating layer is arranged (1) to include 3.0-7.5 pts.mass of the polymer binder to 100 pts.mass of the transition metal oxide, and 5.5-18.5 pts.mass of the conductive material, and (2) to have a thickness of 10-35 μm.SELECTED DRAWING: None 【課題】低抵抗なハイブリッドキャパシタを提供すること。【解決手段】分極性の正極と、集電体および当該集電体の片面または両面上の塗工層を有する負極と、リチウム塩を含む有機溶媒系電解液と、セパレータと、を有するハイブリッドキャパシタであって、前記塗工層は、リチウムイオンを可逆的に吸蔵・放出可能な遷移金属酸化物、ポリマーバインダー、および導電材を含み、かつ、（１）前記塗工層が、前記遷移金属酸化物１００質量部に対して、前記ポリマーバインダーを３．０〜７．５質量部、前記導電材を５．５〜１８．５質量部含み、（２）前記各塗工層の厚みが、１０〜３５μｍであることを特徴とする、ハイブリッドキャパシタ。【選択図】なし