Daikin Industries, Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Mita Industrial Co., Ltd.

Kyocera Mita Corporation

Hiroyuki Arima

Shigeaki Yamazaki

Shinichi Kinoshita

Hideo Sakata

Kenzou Takahashi

Masakazu Kinoshita

Meiten Koh

Yoshiko Kuwajima

Hitomi Nakazawa

Tomo Shimada

Masayuki Mizuno

Susumu Taniguchi

Akinori Tani

Mayuko Taeda

Daisuke Kubo

Makoto Eki

Keiji Ban

Katsuhide Yamaguchi

Shumpei Matsushita

Kenta Chashiro

Hideaki Kimata

Takehiro Kobayashi

Akiyoshi Yamauchi

Kazuhiro Takatani

Tatsuya Ohtsuka

Tomoyuki Tashiro

Tomoya Hidaka

Yuuki Suzuki

Michiaki Okada

Tomoyo Sanagi

Toshiki Ichisaka

Toshirou Miura

Hiroyuki Tanaka

Yosuke Kishikawa

Takaya Yamada

Tadakazu Ogiri

Hisako Nakamura

Yoshihiro Yamamoto

Kotaro Hayashi

Atsushi Maruo

Junichi Inada

Toshiharu Shimooka

Toshiharu Nakai

Motohisa Miyazaki

Junji Joma

Yasuhiro Nishimura

Honami Kojima

An electrolytic capacitor includes a capacitor element containing a conductive polymer and a liquid component. The liquid component includes a first anion component and a second anion component. The first anion component has a carbonyloxy bond. The second anion component has no carbonyloxy bond and has a sulfonylimide bond.

Electrolytic capacitor

Disclosed is a method for producing an electrolytic capacitor, the method including the steps of: preparing an anode foil that includes a dielectric layer, a cathode foil, and a fiber structure; preparing a conductive polymer dispersion liquid that contains a conductive polymer component and a dispersion medium; producing a separator by applying the conductive polymer dispersion liquid to the fiber structure and then removing at least a portion of the dispersion medium; and producing a capacitor element by sequentially stacking the anode foil, the separator, and the cathode foil. The dispersion medium contains water. The fiber structure contains a synthetic fiber in an amount of 50 mass % or more. The fiber structure has a density of 0.2 g/cmor more and less than 0.45 g/cm.

Conductive polymer dispersion liquid, electrolytic capacitor, and method for producing electrolytic capacitor

A disclosed electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer formed on a surface of the anode body, a cathode body, and a electrolyte layer and a separator that are disposed between the dielectric layer and the cathode body. The electrolyte layer includes a non-aqueous solvent, conductive particles, and a conductive polymer. An amount of the conductive particles present in a first portion included in the electrolyte layer and located on the dielectric layer side is different from an amount of the conductive particles in a second portion included in the electrolyte layer and located on the cathode body side.

A method for producing an electrolytic capacitor, the method including steps of: preparing an electrode foil; preparing a first conductive polymer dispersion containing a first conductive polymer component and a first dispersion medium; forming a first conductive polymer layer containing the first conductive polymer component, by applying the first conductive polymer dispersion to a surface of the electrode foil by a coating method, and then at least partially removing the first dispersion medium; and fabricating a capacitor element, using the electrode foil having the first conductive polymer layer.

Electrolytic capacitor and method for producing the same

Disclosed is an electrolytic capacitor including a capacitor element. The capacitor element includes an anode body having a dielectric layer formed at a surface of the anode body, and an electrolyte layer disposed adjacent to the dielectric layer. The electrolyte layer contains a conductive polymer doped with a dopant, conductive particles, and a non-aqueous solvent.

Electrolytic capacitor and method for producing same

An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body and an electrolyte layer. The anode body has a dielectric layer on a surface of the anode body. The electrolyte layer is disposed to be adjacent to the dielectric layer. The electrolyte layer contains a first conductive polymer and a non-aqueous solvent. The first conductive polymer is a self-doped conductive polymer.

Disclosed is a method for producing an electrolytic capacitor, the method including the steps of preparing an anode foil that includes a dielectric layer, a cathode foil, and a fiber structure; preparing a conductive polymer dispersion liquid that contains a conductive polymer component and a dispersion medium; producing a separator by applying the conductive polymer dispersion liquid to the fiber structure and then removing at least a portion of the dispersion medium; and producing a capacitor element by sequentially stacking the anode foil, the separator, and the cathode foil. The dispersion medium contains water. The fiber structure contains a synthetic fiber in an amount of 50 mass % or more. The fiber structure has a density of 0.2 g/cmor more and less than 0.45 g/cm.

The present invention provides an electrolytic solution capable of providing an electrochemical device, such as a lithium ion secondary battery, or a module that has excellent high-temperature storage performance. The electrolytic solution contains: a homocyclic compound other than aromatic compounds; and a cyclic dicarbonyl compound. The homocyclic compound contains at least one group selected from the group consisting of a nitrile group and an isocyanate group.

Electrolytic solution, electrochemical device, lithium-ion secondary cell and module

An electrolyte solution including a solvent, the solvent containing a compound (1a) represented by the following formula (1a); and a compound (2) represented by the following formula (2): wherein Ris a C1-C5 linear or branched alkyl group optionally containing an ether bond; Ris a C1-C5 linear or branched alkyl group optionally containing an ether bond; and at least one of Ror Rcontains a fluorine atom. Also disclosed is an electrochemical device including the electrolyte solution, a lithium-ion secondary battery including the electrolyte solution, and a module including the electrochemical device or the lithium-ion secondary battery.

Electrolyte solution, electrochemical device, lithium ion secondary battery and module

The invention provides an electrolyte solution capable of providing an electrochemical device having low resistance and excellent high-temperature storage characteristics and cycle characteristics. The electrolyte solution contains lithium fluorosulfonate and a solvent containing a compound (1) represented by the following formula (1): CFHCOOCH.

Electrolytic solution, electrochemical device, lithium ion secondary battery, and module

An electrolyte solution containing a solvent and a compound represented by the following formula (1), wherein Ris a C1-C5 linear or branched non-fluorinated alkyl group optionally containing an ether bond. Also disclosed is an electrochemical device including the electrolyte solution, a lithium ion secondary battery including the electrolyte solution and a module including the electrochemical device or lithium ion secondary battery. 

Electrolytic solution, electrochemical device, lithium-ion secondary cell, and module

An electrolyte solution containing a solvent. The solvent contains a compound (1) represented by the following formula (1), wherein R, R, R, and Rare the same as or different from each other, and are each &#x2014;H, &#x2014;F, &#x2014;CH, or &#x2014;CF; at least one of R, R, R, or Ris &#x2014;F or &#x2014;CF; and at least one of R, R, R, or Ris &#x2014;CH, and a compound (2) represented by the following formula (2), wherein Ris a C1-C5 linear or branched alkyl or alkoxy group optionally containing an ether bond; Ris a C1-C5 linear or branched alkyl group optionally containing an ether bond; and at least one of Ror Rcontains a fluorine atom. Also disclosed is an electrochemical device including the electrolyte solution, a lithium-ion secondary battery including the electrolyte solution and a module including the electrochemical device. 

A method for producing lithium fluorosulfonate which includes reacting XSOH, wherein X is a leaving group other than fluorine, with a lithium source and a fluorine source. Also disclosed is a composition containing XSOH.

Lithium fluorosulfonate production method

An electrolyte solution for an electrochemical device, such as a lithium secondary battery, or module. The electrolyte solution contains: a solvent that contains a fluorinated acyclic carbonate having a fluorine content of 33 to 70 mass %; at least one organosilicon compound selected from a compound represented by the formula (1): (R)&#x2014;M&#x2014;O&#x2014;SiRRRand a compound represented by the formula (2): RRR&#x2014;Si&#x2014;F; a lithium salt (3) that contains an oxalato-complex as an anion; and a lithium salt (4) represented by the formula (4): LiMFO, where R, M, R, R, R, R, R, Rand Mare as defined herein.

Electrolyte solution, electrochemical device, secondary battery, and module

An electrolyte solution applicable to high-voltage electrochemical devices and capable of improving the cycle characteristics of electrochemical devices even at high voltage, and an electrochemical device. The electrolyte solution contains a fluorinated diether and a metal salt having a specific structure. The fluorinated diether is represented by CFRR&#x2014;O&#x2014;CHCH&#x2014;O&#x2014;R, wherein Rand Rare each individually H, CH, F, CHF, CHF, or CF; and Ris a C1 or C2 non-fluorinated alkyl group or a C1 or C2 fluorinated alkyl group.

Electrolyte solution, electrochemical device, lithium ion secondary battery, and module

Growing community of inventors

Osaka, Japan

Hiroyuki Arima