Abstract: Rechargeable battery cells according to embodiments of the present technology may include a housing having a first conductive segment operable at anode potential. The housing may include a second conductive segment operable at cathode potential. The housing may include a gasket positioned between the first conductive segment and the second conductive segment and configured to hermetically seal the housing. The cells may include an electrode stack including an anode. The anode may include an anode tab electrically coupled with the first conductive segment of the housing. The electrode stack may include a cathode. The cathode may include a cathode tab electrically coupled with the second conductive segment of the housing. The cells may include a barrier material disposed between the cathode tab and the second conductive segment of the housing. The cathode tab may be electrically coupled with the second conductive segment of the housing through the barrier material.

Abstract: This application relates to a battery system for reducing spacing between components in an electronic device. The battery system includes a housing surrounding an electrode assembly and a connection module. The housing is rigid or semi-rigid and connected to a common ground. The battery system can be positioned in the electronic device to contact components without damaging the components. In some embodiments, the battery system can be used as a structural element in the electronic component.

Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at a ridge portion on each of one or two sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.

Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at ridge portions on at least three sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.

Abstract: A secondary lithium-ion battery employing a prismatic battery can includes a cathode that includes a mixture of lithium nickel cobalt manganese oxide and a lithium nickel cobalt oxide in a weight ratio of between about 0.20:0.80 and about 0.80:0.20, and a current interrupt device. The cathode and current interrupt device are attenuated to trigger the current interrupt device when a voltage of greater than about 4.2 volts and equal to or less than about 5.0 volts is applied to the secondary lithium battery.

Abstract: A battery system monitors the status of a battery and ensures safe conditions under a range of events adversely affecting the safety of the battery cells, the battery pack or enclosure, or a vehicle housing the battery. In response to the safety event, the battery system provides one or more responses to secure the battery, disconnect the battery, extinguish a fire, or maintain a safe temperature. Upon detecting the safety event, the a controller activates the safety device accordingly to ensure safe conditions.

Abstract: A storage voltage of a battery pack is controlled with control electronics. The storage voltage of a battery pack is sensed, and a discharge mechanism is triggered if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. Control electronics sense a storage voltage of a battery pack and trigger a discharge mechanism if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. The control electronics are coupled to an electronic device and a battery pack.

Abstract: A battery comprises a first terminal in electrical communication with a first electrode of the battery, a second terminal in electrical communication with a second electrode of the battery, a battery can electrically insulated from the first terminal, and at least one current interrupt device in electrical communication with the battery can. The battery can includes a cell casing and a lid which are in electrical communication with each other. At least a portion of the battery can is at least a component of the second terminal, or is electrically connected to the second terminal. The current interrupt device includes a first conductive plate in electrical communication with the second electrode, and a second conductive plate in electrical communication with the first conductive plate.

Abstract: A lithium-ion battery includes a first terminal in electrical communication with a first electrode of the battery, a second terminal in electrical communication with a second electrode of the battery, a cell casing that includes a lid electrically connected to the cell casing, and a positive thermal coefficient (PTC) layer in electrical communication with the first terminal and over the lid of the cell casing. A battery pack includes a plurality of such lithium-ion batteries as described above.

Abstract: A lithium-ion battery includes a cathode that includes an active cathode material. The active cathode material includes a cathode mixture that includes a lithium cobaltate and a manganate spinel a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1?y1A?y2)2?x2Oz1 or Li(1+x1)Mn2Oz1. The lithium cobaltate and the manganate spinel are in a weight ratio of lithium cobaltate:manganate spinel between about 0.9:0.1 to about 0.6:0.4. A lithium-ion battery pack employs a cathode that includes an active cathode material as described above. A method of forming a lithium-ion battery includes the steps of forming an active cathode material as described above; forming a cathode electrode with the active cathode material; and forming an anode electrode in electrical contact with the cathode via an electrolyte.

Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at a ridge portion on each of one or two sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.

Abstract: A lithium-ion battery includes a cathode that includes an active cathode material. The active cathode material includes a cathode mixture that includes a lithium cobaltate and a manganate spinel a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1?y1A?y2)2?x2Oz1. The lithium cobaltate and the manganate spinel are in a weight ratio of lithium cobaltate:manganate spinel between about 0.95:0.05 to about 0.55:0.45. A lithium-ion battery pack employs a cathode that includes an active cathode material as described above. A method of forming a lithium-ion battery includes the steps of forming an active cathode material as described above; forming a cathode electrode with the active cathode material; and forming an anode electrode in electrical contact with the cathode via an electrolyte.

Abstract: A lithium-ion battery includes a cathode that includes an active cathode material. The active cathode material includes a cathode mixture that includes a lithium cobaltate and a manganate spinel a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1-y1A?y2)2-x2Oz1 or Li(1+x1)Mn2Oz1. The lithium cobaltate and the manganate spinel are in a weight ratio of lithium cobaltate:manganate spinel between about 0.9:0.1 to about 0.6:0.4. A lithium-ion battery pack employs a cathode that includes an active cathode material as described above. A method of forming a lithium-ion battery includes the steps of forming an active cathode material as described above; forming a cathode electrode with the active cathode material; and forming an anode electrode in electrical contact with the cathode via an electrolyte.

Abstract: A storage voltage of a battery pack is controlled with control electronics. The storage voltage of a battery pack is sensed, and a discharge mechanism is triggered if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. Control electronics sense a storage voltage of a battery pack and trigger a discharge mechanism if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. The control electronics are coupled to an electronic device and a battery pack.

Abstract: Battery cells are embedded in a device to control thermal management of the device. One embodiment includes an embedded battery arrangement that improves thermal management of a portable computer, such as heat transfer and dissipation from heat generating components of the portable computer (including, for example, central processing unit chips or graphics processing unit chips). In one specific embodiment, a printed circuit board is mounted to a battery pack to cause improved radiation of heat from heat generating components of the portable computer to outside of the portable computer housing. In another embodiment, battery cells are distributed within the housing of a portable computer that improves thermal management.

Abstract: A storage voltage of a battery pack is controlled with control electronics. The storage voltage of a battery pack is sensed, and a discharge mechanism is triggered if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. Control electronics sense a storage voltage of a battery pack and trigger a discharge mechanism if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. The control electronics are coupled to an electronic device and a battery pack.

Abstract: A lithium-ion battery comprises a cathode that includes an active cathode material. The active cathode material comprises a cathode mixture that includes a lithium cobaltate and a spinel type lithium manganate, wherein the lithium cobaltate and the lithium manganate are in a weight ratio of lithium cobaltate:lithium manganate between about 0.95:0.05 to about 0.55:0.45, and wherein a ratio of the mean particle diameter of the lithium cobaltate to the mean particle diameter of the lithium manganate is in a range of between about 1:0.35 and about 1:1.4.

Abstract: A battery includes a cell casing; a first terminal; a second terminal in electrical communication with the cell casing and electrically insulated from the first terminal; an electrode assembly in the cell casing; a current interrupt device (CID) in electrical communication with the first terminal and the first electrode or with the second terminal and the second electrode; and insulation that interrupts potential electrochemical communication between the first electrode and the second terminal or between the second electrode and the first terminal. The electrode assembly includes a first electrode in electrical communication with the first terminal, a second electrode in electrical communication with the second terminal, and an electrolyte between the first and second electrodes.

Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at ridge portions on at least three sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.

Abstract: A lithium-ion battery includes a cathode that includes an active cathode material. The active cathode material includes a cathode mixture that includes a lithium cobaltate and a manganate spinel a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1?y1A?y2)2?x2Oz1 or Li(1+x1)Mn2Oz1. The lithium cobaltate and the manganate spinel are in a weight ratio of lithium cobaltate:manganate spinel between about 0.9:0.1 to about 0.6:0.4. A lithium-ion battery pack employs a cathode that includes an active cathode material as described above. A method of forming a lithium-ion battery includes the steps of forming an active cathode material as described above; forming a cathode electrode with the active cathode material; and forming an anode electrode in electrical contact with the cathode via an electrolyte.