NINGDE AMPEREX TECHNOLOGY LIMITED Patent applications |
Patent application number | Title | Published |
20150311522 | POSITIVE ACTIVE MATERIAL FOR USE IN A LITHIUM ION BATTERY AND METHOD FOR PREPARING THE SAME - The present invention provides a positive active material for use in a lithium ion battery, a method for preparing the positive active material and a lithium ion battery containing the positive active material. The positive active material includes a core of lithium containing transition metal oxide represented by Formula Li | 10-29-2015 |
20150179989 | FLEXIBLE BATTERY PACK - The present invention belongs to the technical field of batteries, and more particularly, relates to a flexible battery pack, comprising a packaging film, an electrolyte filled in the packaging film, and at least two electrically-connected cells encapsulated in the packaging film, wherein at least one of the cells is a flexible cell. Compared with the prior art, the flexible battery pack in the present invention is provided with a flexible cell that serves as the flexible part, so that cell bends at the flexible part so as to avoid the effect of stress on the performances of the cells, improve the stability of the cells and improve the bendability of the battery pack. Furthermore, the flexible battery pack in the present invention is further capable of reducing the phenomenon of irregular bending, lowering the bending pressure of the packaging film and prolonging the service life of the battery pack. | 06-25-2015 |
20150104671 | POWER BATTERY - This invention belongs to the field of power battery technologies, and in particular, to a power battery. The power battery comprises a battery shell, a cell accommodated in the battery shell, an electrolyte filled inside the battery shell, and a top cover assembled in a sealed way to the battery shell; a cathode tab and an anode tab are positioned on a front end of the cell; and a cathode transit plate is positioned between the top cover and the cathode tab, wherein a melting region is positioned on the cathode transit plate. Compared with the prior art, this invention, by providing the melting region on the cathode transit plate, is capable of effectively separating the top cover from the cell thereby protecting the top cover from damages when an inner short-circuit or an outer short-circuit occurs on the battery; moreover, the melting region forms a fragile place for a current, and when a large current is generated due to an inner short-circuit or an outer short-circuit of the battery, the region where the melting region is located may melt immediately, where a melting position is accurate and sensitivity is high, thereby greatly improving safety performance of the battery. In addition, this invention has a simple structure, may be implemented easily, and may be applied for industrial production. | 04-16-2015 |
20150086869 | LITHIUM-ION BATTERY - A lithium-ion battery, comprises an anode plate, a cathode plate, a separator and electrolyte, wherein the separator is arranged between the anode plate and the cathode plate. The anode plate comprises an anode current collector and an anode active material layer. The anode current collector is provided with an anode coating area and an anode blank area, and the anode active material layer is coated on the anode coating area. The cathode plate comprises a cathode current collector and a cathode active material layer. The cathode current collector is provided with a cathode coating area and a cathode blank area, and the cathode active material layer is coated on the cathode coating area. When both the anode blank area and the cathode blank area are coated with a polymer layer, the two polymer layers are mutually contacted. | 03-26-2015 |
20150050553 | CELL - The present disclosure provides a cell, which has a stacked body composed of a first electrode plate, a second electrode plate and separators, the stacked body has a starting end and a terminal end, the first electrode plate is provided with a first electrode tab, the second electrode plate is provided with a second electrode tab, the cell has a main body portion formed by winding a part of the stacked body from the starting end of the stacked body and a folded portion formed by folding the rest of the stacked body from a distal end of the main body portion over the main body portion and covering a part of the main body portion The cell can be formed as a step-shaped configuration by directly and sufficiently utilizing winding without cutting or treating the electrode plate, the manufacturing process is simple. | 02-19-2015 |
20140315050 | VENT AND CAP ASSEMBLY OF POWER BATTERY - The present disclosure provides a vent and a cap assembly of a power battery. The vent comprises a vent body and a vent body protective sheath having a wall portion and a hollow portion, the vent body is fixedly connected to a lower portion of the wall portion and sealing the hollow portion from below, an upper portion of the wall portion is fixedly connected to a cap plate for sealing a vent hole. The cap assembly of the power battery comprises a cap plate provided with a vent hole and an electrolyte-injection hole; a first electrode post connected to the cap plate; a second electrode post connected to the cap plate; and a vent fixedly provided to the vent hole; wherein the vent is the above vent. | 10-23-2014 |
20140295267 | SILICON BASED COMPOSITE MATERIAL, AND PREPARATION METHOD AND USE THEREOF - The present disclosure provides a silicon based composite material, and a preparation method and a use thereof. The silicon based composite material comprises silicon nano-particles and polyaniline coating layers on surfaces of the silicon nano-particles, and Si—C covalent bonds are formed between the silicon nano-particles and the polyaniline coating layers. The silicon based composite material provided by the present disclosure is advantageous in improving the coating effect of polyaniline on silicon particles. | 10-02-2014 |
20140272606 | LITHIUM-ION SECONDARY BATTERY AND ELECTROLYTE THEREOF - The present disclosure provides a lithium-ion secondary battery and an electrolyte thereof. The electrolyte comprises a lithium salt, a non-aqueous solvent, and an additive at least containing 1,3-propyl sultone (PS) and a compound of isocyanurate structure represented by formula (1), formula (2) or formula (3); | 09-18-2014 |
20140255769 | LITHIUM-ION BATTERY ELECTROLYTE INJECTION HOLE SEALING DEVICE - The present disclosure provides a lithium-ion battery electrolyte injection hole sealing device, the lithium-ion battery electrolyte injection hole sealing device is provided with a through hole corresponding to an electrolyte injection hole of a battery cover, the lithium-ion battery electrolyte injection hole sealing device is a film comprising a polypropylene layer, the lithium-ion battery electrolyte injection hole sealing device is packaged on the electrolyte injection hole and a peripheral area of the electrolyte injection hole of the battery cover by hot melting of the polypropylene layer. Consequently, pollution and corrosion of the electrolyte injection hole and the peripheral area thereof are avoided, so as to improve quality of seal welding of the electrolyte injection hole. | 09-11-2014 |
20140255766 | ANTI-ROTATION MECHANISM FOR ELECTRODE TERMINAL POST OF LITHIUM-ION BATTERY - The present disclosure provides an anti-rotation mechanism for an electrode terminal post of a lithium-ion battery, the anti-rotation mechanism for the electrode terminal post of the lithium-ion battery is an insulative piece, the insulative piece is provided on an electrode terminal post base which is fixedly connected to the electrode terminal post, and the insulative piece is also fixedly connected to an inner wall of a battery case of the lithium-ion battery. The rotation of the electrode terminal post of the lithium-ion battery can be effectively prevented through the insulative piece which is provided on the electrode terminal post base and is fixedly connected to the inner wall of the battery case of the lithium-ion battery. | 09-11-2014 |
20140205872 | RECHARGEABLE BATTERY HAVING DESIRABLE SAFETY PERFORMANCE - The present application provides a rechargeable battery including a battery case and a battery cap coupled to the battery case. The battery cap includes a conductive cap plate; a first electrode electrically connected to the cap plate; a second electrode insulatively connected to the cap plate, the second electrode being in electrical connection with one end of a conductive plate for securing the second electrode to the conductive cap plate; and a conductive turnover component in electrical connection with the conductive cap plate, the turnover component being initially separated from the conductive plate and capable deforming to contact other end of the conductive plate due to high pressure in the battery case, so as to short-circuit the first electrode and the second electrode. | 07-24-2014 |
20140191763 | DETECTION DEVICE FOR LITHIUM-ION BATTERY - The present disclosure provides a detection device for lithium-ion battery, which comprises an insulative housing having a receiving chamber; an insulative separator positioned between the positive electrode sheet and the negative electrode sheet when the positive electrode sheet and the negative electrode sheet are received in the receiving chamber; a positive electrode sheet conductive fastener passing through the insulative housing and fixedly connected to a positive electrode current collector at a positive electrode current collector non-film-coating region; a negative electrode sheet conductive fastener passing through the insulative housing and fixedly connected to a negative electrode current collector at a negative electrode current collector non-film-coating region; an insulative cover engaged with the insulative housing and the insulative separator; a positive electrode region detection hole communicated to the positive electrode sheet gas region; and a negative electrode region detection hole communicated to the negative electrode sheet gas region. | 07-10-2014 |
20140170445 | POWER BATTERY COVER - A power battery cover, which comprises a cover plate, a burst vent, a first terminal, a second terminal and a conducting strip; wherein, the burst vent, the first terminal and the second terminal are arranged on the cover plate, the second terminal is electrically connected to the cover plate, and the first terminal is subject to an insulated assembly with the cover plate and is electrically connected to the conducting strip; the power battery cover also comprises a tensile shrapnel which is welded to the cover plate; the tensile shrapnel is arranged under and close to the conducting strip; under the condition of overcharge of a battery, air pressure in the battery cell rises due to decomposition of the electrolyte. | 06-19-2014 |
20140154540 | POWER BATTERY COVER PLATE EQUIPPED WITH A CURRENT INTERRUPTION DEVICE - The invention pertains to the field of battery technology, in particular to a power battery cover plate equipped with a current interruption device, comprising a cover plate, a positive Terminal, a vent and a negative teminal, wherein, the positive Terminal, the vent and the negative teminal are installed on the cover plate; the negative teminal comprises an upper part of the negative teminal and a lower part of the negative teminal, in which, the lower part of the negative teminal is assembled with the upper part of the negative teminal in an insulated and sealed way, the upper part of the negative teminal is connected with the lower part of the negative teminal via an elastic connector, the lower part of the negative teminal is provided with a notch to which the elastic connector is corresponding to. | 06-05-2014 |
20140154534 | POWER BATTERY SAFETY HEAD COVER - The invention pertains to the field of power battery technology, in particular to a power battery safety head cover, comprising a cover plate, a positive pole, a negative pole, a pressure release valve and a filling hole, wherein the positive pole, the negative pole, the pressure release valve and the filling hole are arranged on the cover plate, the positive pole is electrically connected with the cover plate, the negative pole is assembled with the cover plate in an insulating way, and the negative pole is connected with a negative temperature coefficient thermistor. | 06-05-2014 |
20140017556 | SOFT-PACKAGE LITHIUM BATTERY EDGEFOLD STRUCTURE - The invention discloses a soft-package lithium battery edgefold structure, comprising a side edge of a soft-package lithium battery and a double edgefold folded by using a packing aluminium foil of the cell of the soft-package lithium battery, wherein a glue layer is arranged between the double edgefold and the side edge, one side of the glue layer is glued with the side edge, while the other side of the glue layer is glued with the double edgefold. The invention has the advantages in that edge glue is needless, capable of preventing metal in the position of scrap edge from outleakage, preventing width of the battery cell at a fixed side edge from increasing, and being easier for realization of automatic production than usually applying edge glue. | 01-16-2014 |
20130236765 | POLYMER LI-ION BATTERY AND THE SEPARATOR THEREOF - The invention pertains to the technical field of a polymer Li-ion battery, in particular to a polymer Li-ion battery separator, comprising porous substrate, wherein at least one surface of the porous substrate is coated with an inorganic coating and an organic coating; the organic coating, shaped like an island and/or linear distribution, is coated on the surface of the porous substrate and/or the inorganic matter coating. | 09-12-2013 |
20130149568 | POWER BATTERY AND ANTI-EXPLOSION DEVICE THEREOF - The invention relates to the power battery technology, especially to a power battery and anti-explosion device thereof, comprising an anti-explosion disc disposed in an anti-explosion bore. The surface of the anti-explosion disc is attached with an anti-explosion ring and an anti-explosion patch, the anti-explosion ring and the anti-explosion patch are at the same side of the anti-explosion disc and the anti-explosion ring and the anti-explosion patch form an annular groove. Compared with the prior art, the anti-explosion device has a simple structure, accurate explosion pressure, high intensity and it is not easy to be damaged. When the power battery is abnormal in use and the inner side has high pressure, the anti-explosion disc will explode under certain pressure to prevent explosion of the battery. It improves the safety of the power battery. | 06-13-2013 |