Zeon Corporation

Nippon Zeon Company, Ltd.

Yasuhiro Wakizaka

Daisuke Uchida

Hiroyuki Taguchi

Naoki Yoshida

Yasuo Tsunogae

Mayumi Fukumine

Koichi Ikeda

Junji Kodemura

Kei Kobayashi

Kei Sakamoto

Tomokazu Sasaki

Junnosuke Akiike

Tohru Hosaka

Toshiyasu Matsui

Shojiro Kaita

Masanobu Sato

Kenya Sonobe

Takumi Sugimoto

Kouichirou Maeda

Hiroshi Koga

Yusaku Matsuo

Keiichiro Tanaka

Takuya Kaneda

Taku Matsumura

Yasuhiro Isshiki

Fumiaki Tsuchiya

Fumio Takano

Toshiyuki Sekine

Atsushi Tsukamoto

Masahiro Ichinose

Masafumi Kawasaki

Nobukazu Kaihatsu

Takashi Iga

Maki Katagiri

Natsuko Nakata

Naoki Kanda

Kanji Yuyama

Provided is a slurry composition for an all-solid-state secondary battery that has excellent fluidity and preservation stability and can form a solid electrolyte-containing layer having excellent ion conductivity. The slurry composition contains a solid electrolyte, a polymer, and a solvent. The ratio of fineness of grind of the solid electrolyte, as measured by a grind gauge method based on JIS K5600-2-5:1999, relative to the average primary particle diameter of the solid electrolyte is more than 1 and less than 30.

Slurry composition for all-solid-state secondary battery, solid electrolyte-containing layer, all-solid-state secondary battery, and method of producing slurry composition for all-solid-state secondary battery

Provided is a laminate for a non-aqueous secondary battery that, in transfer of a functional layer onto a substrate for a non-aqueous secondary battery, enables easy peeling of the functional layer from a releasable substrate while also enabling good adhesion of the functional layer to the substrate for a non-aqueous secondary battery. The laminate for a non-aqueous secondary battery includes a releasable substrate and a functional layer containing a binder. The functional layer is formed in a dotted form on a surface A at one side of the releasable substrate.

Laminate for non-aqueous secondary battery and method of producing same, roll for non-aqueous secondary battery, and method of producing non-aqueous secondary battery component

Provided is a method of efficiently producing a laminate for a non-aqueous secondary battery having excellent process adhesiveness. The method of producing a laminate for a non-aqueous secondary battery is a method of producing a laminate for a non-aqueous secondary battery including an electrode and a separator that are affixed to each other and includes: a step (A) of supplying, to at least one of an affixing surface of the electrode and an affixing surface of the separator, a substance that can plasticize a polymer contained in a surface layer part at an affixing surface side of at least one of the electrode and the separator; and a step (B) of affixing the electrode and the separator to each other after step (A).

Method of producing laminate for non-aqueous secondary battery and method of producing non-aqueous secondary battery

Provided is a binder composition for a non-aqueous secondary battery positive electrode that can form a positive electrode with which it is possible to obtain a non-aqueous secondary battery having excellent life characteristics even when aging treatment is carried out under low-temperature and low-depth of charge conditions. The binder composition contains a first binder, iron, and at least one of ruthenium and rhodium. The total iron, ruthenium, and rhodium content is no greater than 5&#xd7;10parts by mass per 100 parts by mass of the first binder.

Binder composition for non-aqueous secondary battery positive electrode, composition for non-aqueous secondary battery positive electrode, positive electrode for non-aqueous secondary battery, and non-aqueous secondary battery, and methods for producing composition for non-aqueous secondary battery positive electrode, positive electrode for non-aqueous secondary battery, and non-aqueous secondary battery

A porous membrane composition for a lithium ion secondary battery, including a first particulate polymer, wherein the first particulate polymer has a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion, the core portion is formed from a polymer having a swelling degree in an electrolytic solution of 5 times or more and 30 times or less, and the shell portion is formed from a polymer having a swelling degree in the electrolytic solution of 1 time or more and 4 times or less.

Porous film composition for lithium ion secondary batteries, separator for lithium ion secondary batteries, electrode for lithium ion secondary batteries, and lithium ion secondary battery

An adhesive for a lithium ion secondary battery, for bonding members for constituting a lithium ion secondary battery, the adhesive including a particulate polymer, wherein the particulate polymer has a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion, the core portion is formed from a polymer having a swelling degree in an electrolytic solution of 5 times or more and 30 times or less, and the shell portion is formed from a polymer having a swelling degree in an electrolytic solution of more than 1 time and 4 times or less.

Adhesive for lithium ion secondary batteries, separator for lithium ion secondary batteries, and lithium ion secondary battery

A secondary battery porous membrane, manufactured by a slurry for secondary battery porous membrane, which is superior in coating priority and dispersibility of non-conductive organic particles, which improves cycle characteristic of the obtained secondary battery, which has high flexibility and can prevent powder falls, and which has less content of moisture amount; and non-conductive organic particles, which can be suitably used as a secondary battery porous membrane and has less content of metallic foreign particles. The slurry for secondary battery porous membrane comprises; a binder including a polymerized unit of vinyl monomer having a hydrophilic acid group, a non-conductive organic particle having a functional group, cross-linkable with the hydrophilic acid group and a solvent.

Slurry for secondary battery porous membrane, a secondary battery porous membrane, an electrode for secondary battery, a separator for secondary battery and a secondary battery

Disclosed is a manufacturing method of an electrode for an electrochemical element having a superior adhesion and is used for an electrochemical element with excellent productivity due to a short predoping time. Specifically disclosed is that the method is characterized by comprising a step for compression forming of electrode material (a mixed powder or composite particles) including an alkaline metal powder or an alkaline earth metal powder each having a coated surface.

Manufacturing method of an electrode for electrochemical element and an electrochemical element

A negative electrode for a lithium ion secondary battery including an active material layer that is disposed on a current collector and that contains a negative electrode active material and a binder, in which the negative electrode active material includes an alloy active material and a carbon active material, and the weight ratio between the alloy active material and the carbon active material in the active material layer is 20:80 to 50:50, and the binder contains 0.1 to 15 wt % of an ethylenically unsaturated carboxylic acid monomer polymerization unit.

Anode for use in a lithium-ion secondary battery, and lithium-ion secondary battery

Provided is a porous film that can contribute to improving the cycle characteristics of an electric cell by improving binding characteristics, for a porous film provided on a surface of an electrode used in a secondary cell and the like. The porous film comprises a water-soluble polymer, an inorganic filler, and a water-insoluble particulate polymer including 0.5-40 mass % of a monomer unit having a hydrophilic group selected from the group consisting of carboxylic acid groups, hydroxyl groups, and sulfonate groups.

Porous film and secondary battery electrode

Disclosed is a negative electrode active material for a lithium ion secondary battery, which is capable of further improving the charge/discharge cycle characteristics. Also disclosed is a lithium ion secondary battery which uses the negative electrode active material for a lithium ion secondary battery. The negative electrode active material for a lithium ion secondary battery is composed of composite particles each of which has a core/shell structure configured of a core part that is formed from a polymer and a shell part that is formed of a metal layer. The metal layer of the shell part is formed by metal plating. Preferably, the metal layer comprises at least a metal layer (a1) that is formed by electroless plating and a metal layer (a2) that is formed by electrolytic plating, in this order from the core part side.

Negative electrode active material for lithium ion secondary battery and lithium ion secondary battery

A binder composition for a non-aqueous battery electrode containing a binder and an ether compound represented by the formula (1), and an electrolyte solution composition for a non-aqueous battery containing an ether compound represented by the formula (1), wherein m and n each independently represent 0 or 1, and Rrepresents a divalent linear hydrocarbon group which may have in the bond thereof one or more intervening groups selected from the group consisting of an oxygen atom, a sulfur atom, and a carbonyl group. 

Binder composition for non-aqueous battery electrode, electrolyte solution composition for non-aqueous battery, and use thereof

The present invention is intended for providing a porous film having excellent film uniformity, and is capable to contribute for improving cyclic and rate properties, which is provided on a surface of electrode used for a secondary battery and the like. The porous film of the present invention is characterized by including water soluble polymer having an average polymerization degree of 500 to 2500, an inorganic filler and water soluble particulate polymer. In the present invention particularly, it is preferable that said water soluble polymer is thickening polysaccharides, further said water-insoluble polymer is preferably selected from the group consisting of semisynthetic cellulose polymer, sodium salt and ammonium salt thereof.

In regards with the porous film provided on the surface of the electrode used for the secondary battery or so, the present invention provides the porous film which can contribute to reduce the adhered material to the roll during the roll winding of the electrode. The secondary battery electrode formed by adhering; the porous film comprising the inorganic filler and the binder, and styrene and the polymer having the glass transition temperature of 15&#xb0; C. or less as said binder, the porous film slurry comprising the inorganic filler, the polymer having the glass transition temperature of 15&#xb0; C. or less and the solvent, and the electrode composite layer comprising the binder and the electrode active material, to the current collector, and said porous film is provided on the surface of the electrode composite layer.

Porous film, secondary battery electrodes, and lithium ion secondary battery

A secondary battery electrode which suppresses decrease in capacity and lithium deposition at low temperatures is provided. An electrode for a secondary battery includes an electrode active material layer containing a polymer having a cationic group, an anion corresponding to the cationic group, and an electrode active material, and the cation density in the polymer is 0.1 to 15 meq/g.

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Tokyo, Japan

Yasuhiro Wakizaka