Patent application number | Description | Published |
20090098464 | Reactive polymer-supporting porous film for battery separator and use thereof - The invention provides a reactive polymer-supporting porous film for use as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film, the partially crosslinked reactive polymer being obtained by the reaction of a crosslinkable polymer having at least one reactive group selected from the group consisting of 3-oxetanyl group and epoxy group in the molecule with a monocarboxylic acid. | 04-16-2009 |
20090202898 | Reactive polymer-carrying porous film and processing for producing the same - It is intended to provide a reactive polymer-supported porous film that is capable of achieving sufficient adhesion between the electrode and the separator; reduced in internal resistance; and excellent in high rate characteristics, the porous film being useful as a battery separator which, after production of the battery, is not melted or broken under a high temperature and functions as a separator having a small heat shrinkage ratio as well as to provide a process for producing batteries using the reactive polymer-supported porous film. | 08-13-2009 |
20100183908 | CROSSLINKING POLYMER-SUPPORTED POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF - The present invention relates to a crosslinking polymer-supported porous film for battery separator, including: a porous film; and a crosslinking polymer supported on the porous film, the crosslinking polymer having a plurality of cation-polymerizable functional groups in the molecule thereof and having oxyalkylene groups represented by general formula (I): | 07-22-2010 |
20100227223 | METHOD FOR PRODUCTION OF POROUS FILM, POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SEPARATOR - The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention. | 09-09-2010 |
20100239900 | BATTERY SEPARATOR AND NONAQUEOUS LITHIUM ION SECONDARY BATTERY HAVING THE SAME - The invention provides a battery separator comprising a porous resin film and a crosslinked polymer supported thereon and having iminodiacetic acid groups in side chains of the polymer chains. The iminodiacetic acid group is preferably represented by the formula | 09-23-2010 |
20100325877 | POROUS FILM HAVING REACTIVE POLYMER LAYER THEREON FOR USE IN BATTERY SEPARATOR, AND USE OF THE POROUS FILM - The present invention relates to a reactive polymer layer-supported porous film for battery separator, including: a porous film substrate; and a reactive polymer layer supported on the porous film substrate, the reactive polymer layer having a thickness of 2 μm or less and being obtained by a crosslinking reaction between a polyfunctional isocyanate and a crosslinkable polymer having both a reactive group capable of reacting with an isocyanate group and a cationically polymerizable functional group in the molecule thereof, in which the reactive polymer layer has a plurality of through-holes having an average pore diameter of 5 μm or less. | 12-30-2010 |
20110232081 | REACTIVE POLYMER-SUPPORTING POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF - A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together. | 09-29-2011 |
20110232836 | REACTIVE POLYMER-SUPPORTING POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF - A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together. | 09-29-2011 |
20120070734 | LITHIUM SECONDARY BATTERY AND ANODE THEREFOR - The present invention provides an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a laminar structure without an opening, the active material layer has a network structure with an opening, and the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle. The anode of the present invention can achieve charge-discharge-cycle property superior to that of the prior art. | 03-22-2012 |
20120297612 | CROSSLINKING POLYMER-SUPPORTED POROUS FILM FOR BATTERY SEPARATOR AND METHOD FOR PRODUCING BATTERY USING THE SAME - The method for producing a battery, includes the steps of: laminating electrodes on the crosslinking polymer-supported porous film to prepare a laminate of crosslinking polymer-supported porous film/electrodes; placing the laminate in a battery container; and pouring an electrolyte solution containing a cation polymerization catalyst in the battery container to induce cation polymerization and crosslinking of the crosslinking polymer, thereby at least partially gelling the electrolyte solution to adhere the porous film and the electrodes. | 11-29-2012 |
20130040200 | LITHIUM SECONDARY BATTERY AND ANODE THEREFOR - The present invention relates to an anode of a lithium secondary battery containing a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a layer made of Ni | 02-14-2013 |
20140186703 | POSITIVE ELECTRODE FOR POWER STORAGE DEVICE AND POWER STORAGE DEVICE - Provided is a positive electrode for a power storage device, which has an excellent discharge characteristic irrespective of an oxidized state of polyaniline as a positive active material and which is excellent in storability and handleability. The positive electrode for a power storage device includes polyaniline, where a ratio of a polyaniline oxidized body in the positive electrode is 0.01 to 75% to the entire polyaniline. | 07-03-2014 |