Patent application number | Description | Published |
20140038001 | POWER BATTERY SAFETY COVER - The invention pertains to the technical field of a power battery, in particular to a power battery safety cover, comprising a cover plate, and a first terminal, a second terminal, a pressure release valve, a filling hole and a safety turning valve which are arranged on the cover plate, wherein the safety turning valve is electrically connected to the cover plate, on the cover plate is provided with a conducting plate for short-circuit protection which is electrically connected to the second terminal; the conducting plate for short-circuit protection, positioned above the safety turning valve, comprises a conducting plate main body and a first groove arranged on the conducting plate main body, and thickness of bottom of the first groove is less than that of the safety turning valve. | 02-06-2014 |
20140113183 | LITHIUM-ION BATTERY WITH SAFETY PROTECTION BRACKET - A lithium-ion battery includes a safety protection bracket. The battery includes an electrode assembly and an aluminum housing for receiving the electrode assembly, wherein the electrode assembly comprises a cathode, an anode, and a separator film, a cathode tab is positioned on the cathode, an anode tab is positioned on the anode, a safety bracket is positioned on the top of the electrode assembly, and the safety bracket is located between the aluminum housing and the electrode assembly, and an aluminum top cover fixedly connected to the aluminum housing is positioned on the aluminum housing. The battery provides a safety protection unit deployed on the bracket can fix the electrode assembly, and in addition, when the battery is punctured or crushed or otherwise misused, release energy of a faulty cell through an outer short-circuit to avoid greater accidents and ensure safety performance of the battery. | 04-24-2014 |
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 |
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 |
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 |
20150104672 | SAFETY DEVICE OF LITHIUM-ION BATTERY - This invention belongs to the lithium-ion battery field, and in particular, to a safety device of a lithium-ion battery. The safety device of a lithium-ion battery comprises a top cover plate, a first electrode post, a second electrode post, an explosion-proof valve, and a conductive plate, wherein the first electrode post, the second electrode post, and the explosion-proof valve are respectively positioned on the top cover plate; the first electrode post is electrically connected to the top cover plate; the second electrode post is assembled in an insulated way to the top cover plate; and the second electrode post is electrically connected to the conductive plate; where an air-pressured flip plate is further positioned on the top cover plate, and a cut is positioned on the air-pressured flip plate. The device may be used to avoid a safety problem caused by overcharging when an accident occurs on a cell, and release energy of the faulty cell through an outer short-circuit, thereby avoiding a more serious safety accident and ensuring safety performance of the battery. | 04-16-2015 |
Patent application number | Description | Published |
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 |
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 |
20140302359 | LITHIUM-ION BATTERY AND DEFORMABLE SAFETY VALVE AS OVERCHARGE PROTECTION DEVICE THEREOF - The present disclosure provides a lithium-ion battery and a deformable safety valve as an overcharge protection device thereof. The deformable safety valve as the overcharge protection device of the lithium-ion battery comprises a short-circuit conductive plate and a deformable plate made from aluminum, a facing surface of the deformable plate being coated with a metal layer to reduce contact resistance between the deformable plate and the short-circuit conductive plate. The lithium-ion battery comprises a first electrode post; a cap plate electrically connected to the first electrode post; an electrolyte-injection hole provided in the cap plate; a vent provided in the cap plate; a deformable safety valve provided to the cap plate; and a second electrode post assembled to the cap plate in an insulating manner; wherein the deformable safety valve is the above deformable safety valve as the overcharge protection device of the lithium-ion battery. | 10-09-2014 |
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 |
20150132619 | SAFETY CAP ASSEMBLY OF POWER BATTERY - A safety cap assembly of power battery comprises a cap plate and a first terminal unit, a second terminal unit, a vent, an electrolyte-injection hole and a safety reverse valve provided to the cap plate; the first terminal unit is electrically connected to the cap plate; the second terminal unit is insulated from and assembled to the cap plate; the safety reverse valve is electrically connected to the cap plate; a short circuit protection conducting plate is provided above the cap plate, is electrically connected to the second terminal unit, and is positioned above the safety reverse valve; the first terminal unit comprises a first terminal body, and a metal gasket and a resistance plate around the first terminal body, the resistance plate is provided below the metal gasket and comprises a substrate and a coating on a surface of the substrate. | 05-14-2015 |
20150188119 | Safety Device Of Lithium-Ion Battery - A safety device of lithium-ion battery is provided which comprises a cap plate, a first electrode post, a second electrode post, a vent, a deformable plate, an insulating plate and a conductive plate, the first electrode post, the second electrode post and the vent are provided on the cap plate, the first electrode post and the cap plate are electrically connected, the first electrode post and the conductive plate are assembled in an insulating manner, the deformable plate is provided between the first electrode post and the conductive plate, the deformable plate are electrically connected to the first electrode post and the conductive plate, the deformable plate comprises a recessing portion, connecting portions and welding portions, the recessing portion is integrally connected to the welding portion by the connecting portion, the conductive plate is provided with a gas-guide hole, an opening of the gas-guide hole corresponds to the connecting portion. | 07-02-2015 |