Abstract: A positive electrode for nonaqueous electrolyte battery includes specific peaks in pyrolysis GC/MS measurement, and includes specific pore diameters and pore volumes in a pore distribution curve attained by a mercury intrusion method.

Abstract: A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.

Abstract: A battery module for an electric vehicle, includes a plurality of battery cells and at least one electrical resistance element arranged between the battery cells for heating the battery cells as needed. The electrical resistance element includes a polymer composition having a positive temperature coefficient.

Abstract: A gel polymer electrolyte composition, a secondary battery including the same, and a manufacturing method of a secondary battery are disclosed. Advantages of the disclosed aspects include increasing process efficiency by reducing the curing time of a gel polymer electrolyte while preventing leakage of an electrolyte.

Abstract: An assembly and a method of manufacturing a battery pack with airgap sizing for preventing ejecta debris clogging for an electric aircraft are disclosed. The assembly includes a battery module configured to house a battery unit, wherein the battery module includes a battery cell and a cooling plate configured to stabilize battery cell temperature. The assembly includes a fire wall configured to intercept ejecta debris from the battery cell. The assembly includes an airgap configured to contain the ejecta debris between the firewall and the battery cell. The assembly includes a headspace configured to tolerate the ejecta debris on top of the battery cell, wherein the headspace includes an ejecta vent configured to vent the ejecta debris.

Abstract: An integrated, unitary battery pack may be formed and used as part of the structural support for a vehicle frame. The unitary battery pack includes arrays cells having all positive and negative electrical terminals aligned in-plane on a common face of the product assembly. The unitary battery pack includes cooling components for passively or actively cooling the cell arrays. The unitary battery pack is encased in a potting material that allows that forms part of the structure support for the unitary battery pack. The unitary batter pack may be integrated into the vehicle with or without additional support structures.

Abstract: A battery module (1, 108, 408) including a plurality of heat pipes (30, 31, 130, 131, 430, 460, 531) configured to be thermally connected to a heat reservoir (76, 376), the heat pipes being individually sealed and integrated in an external surface (3, 408B) of the battery module. The heat pipes are configured to be arranged in physical contact with a heat conducting element (302A) for transferring heat to and/or from the battery module.

Abstract: Provided in this disclosure is a battery module with a cooling plate and a firewall. Battery modules may include a firewall located proximal to the plurality of battery cells and configured to absorb heat from the battery cells. Firewall may include a stack of materials. Battery module may include a cooling plate between rows of battery cells configured to cool the battery cells.

Abstract: The present invention relates to the field of electrical energy storage devices and in particular enables simplified manufacture and/or optimised operation thereof in that a cooling module, a cell stack, the entire electrical energy storage device and/or a method for cooling cells are optimised.

Abstract: A heating pad control apparatus capable of preventing a battery pack from maintaining a high-temperature state by controlling an operating state of a heating pad based on a temperature of the battery pack and a current flowing through the battery pack. There is an advantage in that the temperature of the battery pack may be prevented from rising above a certain level. Accordingly, since the temperature of the battery pack is maintained at a certain level, damage to the elements provided in the battery pack is reduced, and the use efficiency of the battery pack may be improved.

Abstract: The present application provides a tab inspection method. The method includes: determining a first start position of the tab in a second direction of the electrode plate according to a first trigger manner, where the second direction is perpendicular to the first direction; determining a second start position of the tab in the second direction of the electrode plate according to a second trigger manner; and determining, according to a distance between the second start position and the first start position, whether a position of the tab on the electrode plate deviates; where the first trigger manner is a manner for determining the start position of the tab based on a change of a height of the electrode plate in the first direction, and the second trigger manner is a manner for determining the start position of the tab based on a preset position of the tab on the electrode plate.

Abstract: The present disclosure provides a joining technique capable of improving strength and reducing electrical resistance of a connecting portion that performs heterometal interjunction in a sealed battery. A mode of the sealed battery disclosed herein includes an electrode body, a battery case, a positive electrode internal terminal, a positive electrode external terminal, a negative electrode internal terminal, and a negative electrode external terminal. In the sealed battery, in a connecting portion between the negative electrode internal terminal and the negative electrode external terminal, an upper end of the negative electrode internal terminal and the negative electrode external terminal are stacked with a plated layer interposed therebetween and, at the same time, the negative electrode internal terminal and the negative electrode external terminal are joined to each other via the plated layer.

Abstract: In a battery pack, a housing includes an exhaust portion provided on an upper side in a gravity direction with respect to a housing portion that houses a live part. The exhaust portion includes: a storage portion configured to store a liquid; a first communication portion that communicates between an interior of the housing portion and an interior of the exhaust portion; and a second communication portion that communicates between an outside of a housing and an inside of the exhaust portion. When the battery pack is viewed from the upper side in the gravity direction, an opening of the second communication portion on an inner side of the exhaust portion is provided at a position that overlaps the storage portion and that does not overlap an opening of the first communication portion on the inner side of the exhaust portion.

Abstract: In an embodiment, a battery module is configured for insertion into a battery module compartment of an energy storage system. The battery module includes a first exterior plate configured with a male joining section, a second exterior plate that is adjacent to the first exterior plate and configured with a female joining section, wherein the first and second exterior plates are joined together via the male and female joining sections without welding. In an example, by joining the first and second exterior plates (e.g., and optionally, other exterior plates of the battery module as well) without welding, problems associated with heat from a welding process as well as spatters and dirt accumulation at battery cells of the battery module can be reduced or avoided.

Abstract: A battery module includes a housing, assembled from a first side wall, a second side wall, a first end plate, and a second end plate, is configured to support a plurality of battery cells. The battery module also includes a heating pad and a cooling plate that are configured to regulate a thermal state of the plurality of battery cell. The heating pad is disposed substantially adjacent to the plurality of battery cells and the cooling plate is disposed adjacent to the heating pad opposite the plurality of battery cells. A controller associated with the battery module is configured receive an indication of battery temperature and active one of the heating pad or the cooling plate based at least on the battery temperature of the plurality of battery cells.

Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.

Abstract: A method for forming a battery assembly including: a) stacking a plurality of battery plates to form a plurality of electrochemical cells, and b) welding about an exterior periphery of the plurality of battery plates to form one or more integrated edge seals such that one or more individual battery plates are bonded to one or more adjacent battery plates. The one or more individual battery plates may include one or more projections extending from the exterior periphery of the individual battery plate toward the adjacent one or more battery plates; and wherein upon stacking, the one or more projections of the one or more individual battery plates overlap about an exterior of the one or more adjacent battery plates. The integrated edge seal may be formed by one or more projections bonding to the one or more adjacent battery plates.

Abstract: An energy storage module comprising a plurality of electrochemical cells for storing electric energy and comprising at least one contacting device for electrically contacting the plurality of electrochemical cells. Each of the electrochemical cells has a first flat connection lug for contacting a first electrode of the respective electrochemical cell and a second flat connection lug for contacting a second electrode of the respective electrochemical cell. The electrochemical cells are arranged in a stacked formation and form a cell pack such that the first and second flat connection lugs extend outwards from two opposing sides of the cell pack in an at least substantially perpendicular manner. According to the invention, the at least one contacting device is substantially comb-shaped in particular and has a plurality of teeth which are formed and arranged such that a first or second connection lug is or can be received between two adjacent teeth.

Abstract: Embodiments of the present application provide a box of a battery. The box includes: an electrical chamber configured to accommodate a plurality of battery cells, a battery cell including a pressure relief mechanism, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a thermal management component configured to accommodate a fluid to adjust the temperature of the battery cell; and a collection chamber configured to collect emissions discharged from the battery cell when the pressure relief mechanism is actuated, where the electrical chamber and the collection chamber are disposed on both sides of the thermal management component, a wall of the collection chamber is provided with a first pressure relief zone, and the first pressure relief zone is configured to relieve the emissions in the collection chamber.

Abstract: An electric vehicle battery pack with a thermal shield that protects internal components from, for example, battery ventilation, and in particular allows battery pack electrical components to be placed above venting ends of batteries. The thermal shield is positioned above the venting ends of one or more batteries, and various battery pack electrical components may be placed above the thermal shield. Gases and particulate matter from battery venting are thus intercepted and deflected by the thermal shield, instead of damaging battery pack electrical components. In this manner, various battery pack electrical components may be placed above battery venting ends without risk of damage. This allows for a more compact and versatile arrangement of battery pack components.