Patent application number | Description | Published |
20080248335 | Bipolar Battery Cell and Assembled Battery For a Vehicle - The invention relates to a bipolar battery cell having a built-in discharge circuit that can automatically balance the charged conditions. The bipolar battery cell includes a plurality of bipolar electrodes, each including a collector having a positive-electrode layer on one surface and a negative-electrode layer on another surface. The bipolar battery cell further includes a plurality of electrolyte layers that exchange ions between the bipolar electrodes, and a discharge circuit that electrically connects adjacent bipolar electrodes. The discharge circuit is provided on the same surface of at least one layer of the positive-electrode layers, the negative-electrode layers, or the electrolyte layers. Multiple bipolar battery cells are combined to form an assembled battery for vehicular applications. | 10-09-2008 |
20080292952 | SECONDARY BATTERY AND VEHICLE MOUNTING THE SAME - The disclosure discusses a secondary battery with superior durability and a vehicle configured to mount the same. The secondary battery comprises an electrode structure wherein a cathode is formed at one side of a base material layer having electrical insulating property and an anode is formed at another side of the base material layer. A plurality of electrode structures are stacked with an electrolyte layer interposed therebetween such that the cathode and anode of adjacent electrode structures are on opposite sides of the electrolyte layer. | 11-27-2008 |
20080305394 | SECONDARY BATTERY AND METHOD OF PRODUCING THE SECONDARY BATTERY - A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer. | 12-11-2008 |
20090017376 | LAMINATE TYPE BATTERY - A battery including an electrode and electrode terminal, the electrode comprising a multilayered collector assembly having a multilayered portion that includes an insulation layer and two electrically conductive layers disposed on opposite sides of the insulation layer, and a conductive portion made of an electrically conductive material, connected to the two conductive layers and extending therefrom more toward a side end of the electrode than a side end of the insulation layer so as to be electrically connected to the electrode terminal, and a pair of active material layers disposed on opposite sides of the multilayered portion. | 01-15-2009 |
20090047575 | CELL AND BATTERY INCORPORATING THE CELL - Disclosed is a cell with a power-generating element and an outer package. The power-generating element includes a unit cell layer including a first electrode, a second electrode and an electrolyte layer disposed between the first and second electrodes. In the first electrode, a first collector is provided with one of a positive electrode active material layer and a negative electrode active material layer. In the second electrode, a second collector is provided with the other one of the positive and negative electrode active material layers. The first and second collectors have thicknesses such that when a conductor from outside penetrates at least two cells and a short circuit is formed between two cells via the conductor, shorted portions of the first and second collectors are fused by the heat generated by the current before the temperature of the cells reaches a predetermined value so that the short circuit is blocked. | 02-19-2009 |
20090117456 | BIPOLAR SECONDARY BATTERY, BATTERY ASSEMBLY FORMED BY CONNECTING SAID BATTERIES AND VEHICLE MOUNTING SAME - Embodiments of a battery taught herein are directed to preventing a displacement between bipolar battery stacks or between a bipolar battery stack and an electrode tab. A bonding portion is formed at a part of a contact surface where a collector positioned at both ends in a stacking direction of a bipolar battery stack is bonded to the electrode tabs. The electrode tab and the collector are fixed by such a bonding portion. Further, the bonding portion is formed at a part of a contact surface where adjacent bipolar battery stacks are bonded to each other. Bipolar batteries positioned at upper and lower portions in the stacking direction are fixed by such a bonding portion. | 05-07-2009 |
20090173632 | SECONDARY CELL ELECTRODE AND FABRICATION METHOD, AND SECONDARY CELL, COMPLEX CELL, AND VEHICLE - In a nonaqueous electrolyte cell-oriented electrode ( | 07-09-2009 |
20100239902 | LAMINATE CELL, ASSEMBLED BATTERY, BATTERY MODULE AND ELECTRIC VEHICLE - A laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a positive tab connected to the positive electrode plates through a plurality of positive leads; a negative tab connected to the negative electrode plates through a plurality of negative leads; and a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte. According to the laminate cell, the heat capacity of a portion of the positive tab, onto which a plurality of the positive leads are joined, and the heat capacity of a portion of the negative tab, onto which a plurality of the negative leads are joined, are made larger than that of other portions of the positive tab and the negative tab. | 09-23-2010 |
20100263201 | LAMINATE CELL, ASSEMBLED BATTERY, BATTERY MODULE AND ELECTRIC VEHICLE - A laminate cell comprises a power generating element formed by sequentially stacking positive electrode plates and negative electrode plates while interposing separators therebetween; a positive tab connected to the positive electrode plates through a plurality of positive leads; a negative tab connected to the negative electrode plates through a plurality of negative leads; and a cell package formed of a metal composite film, the cell package hermetically sealing the power generating element and an electrolyte. According to the laminate cell, the heat capacity of a portion of the positive tab, onto which a plurality of the positive leads are joined, and the heat capacity of a portion of the negative tab, onto which a plurality of the negative leads are joined, are made larger than that of other portions of the positive tab and the negative tab. | 10-21-2010 |
20110151313 | Electrode for Use in a Battery - An electrode and method for preparing the same in which droplets of a first electrode ink composition and droplets of a second electrode ink composition are ejected from an ink jet device onto a base material and the first electrode ink composition contains at least one electrode active material and the second electrode ink composition contains at least one binder material. The resulting electrode is suitable for use in a battery. | 06-23-2011 |
20120005882 | BIPOLAR BATTERY - The present invention provides a bipolar battery made by using a polymer gel electrolyte or a liquid electrolyte in an electrolyte layer, which is highly reliable and prevents liquid junction (short circuit) caused by leak out of an electrolyte solution from the electrolyte part. The present invention provides a bipolar battery laminated, in series, with a plurality pieces of bipolar electrodes which is formed with a positive electrode on one surface of a collector, and a negative electrode on the other surface, so as to sandwich an electrolyte layer, characterized by being provided with a separator which retains the electrolyte later, and a seal resin which is formed and arranged at the outer circumference part of a part of the separator where the electrolyte is retained. | 01-12-2012 |
20130129914 | SECONDARY CELL ELECTRODE AND FABRICATION METHOD, AND SECONDARY CELL, COMPLEX CELL, AND VEHICLE - In a nonaqueous electrolyte cell-oriented electrode ( | 05-23-2013 |
20130248106 | SECONDARY BATTERY AND METHOD OF PRODUCING THE SECONDARY BATTERY - A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer. | 09-26-2013 |
20140113178 | AUTOMOBILE CELL AND RELATED METHOD - An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath. The positive electrode and the negative electrode associated therewith via the separator defines a unit electrode, and the relationship between a thickness of the automobile cell and a sum of a thickness of the positive electrode active substance layer and a thickness of the negative electrode active substance layer of the unit electrodes, is defined such that a value obtained by dividing the former by the latter is equal to or less than 80. | 04-24-2014 |