The present invention relates to a stepped battery, more particularly to, a stepped battery capable of increasing utilization of an inner space of a system. The stepped battery according to the present invention includes a first cell and a plurality of second cells, which are stacked on one surface of the first cell and each of which has a width less than that of the first cell. The second cells are disposed to be spaced apart from each other.

Systems, apparatus, and methods for managing power in a hybrid battery cartridge. The hybrid battery cartridge may output single-use battery power, rechargeable battery power, or both. Thus, a single battery cartridge may store multiple types of batteries and allow the batteries to be used separately or concurrently. In one example usage, the battery cartridge may be inserted into other devices to provide power. Additionally, the intelligent hybrid battery cartridge may be used as a stand-alone charger to charge other devices. The intelligent hybrid battery cartridge is designed to allow for retrofitting into existing single-use battery powered devices such as flashlights and lanterns to make them hybrid power enabled. The hybrid battery cartridge may select a power source based the type of load and/or on a reserve power threshold.

Alkaline electrochemical cells are provided, wherein an organic additive is included in at least one component of the cell in order to increase electron discharge of the cathode, so as to improve the specific capacity of the cell. Methods for preparing such cells are also provided.

Alkaline electrochemical cells are provided, wherein an organic additive is included in at least one component of the cell in order to increase electron discharge of the cathode, so as to improve the specific capacity of the cell. Methods for preparing such cells are also provided.

A reusable battery indicator includes a voltage sensor, a communication circuit communicatively connected to the voltage sensor, an antenna operatively coupled to the communication circuit, and a connector. The connector is electrically connected to the voltage sensor, and the connector is adapted to be removably connected to a battery, thereby providing an electrical connection between the voltage sensor and the battery. An electrical circuit is completed between the voltage sensor and the battery and the voltage sensor. The connection mechanism includes part of an electrical lock and key assembly.

A thermal management system for a vehicle may include a battery line connected to a high-voltage battery core, provided with a first radiator, and through which coolant is communicated by a first pump; an indoor heating line connected to a heating core for indoor air conditioning, provided with a hydrothermal heater therein, provided with a second pump to fluidically-communicate the coolant, and provided with a first valve at a downstream point of the heating core; a first and a second battery heating line branched or joined at the downstream point of the heating core in the indoor heating line to be connected to the upstream point and the downstream point of the high-voltage battery core, respectively; and a refrigerant line provided with an expansion valve, a cooling core for indoor air conditioning, a compressor, and a condenser.

A method for operating a medical device includes activating a processor in the medical device in a low-power operating mode, measuring a first voltage level of the battery, applying at least one discharge pulse to the battery in response to the first voltage level of the battery being greater than a predetermined passivation minimum voltage threshold and less than a predetermined passivation maximum voltage threshold, measuring a second voltage level of the battery after the at least one discharge pulse, and operating the processor in the medical device in an increased-power operating mode to continue operation of the medical device only in response to the second voltage level being greater than or equal to a predetermined operating voltage threshold, the predetermined operating voltage threshold being greater than the predetermined passivation minimum voltage threshold and less than or equal to the predetermined passivation maximum voltage threshold.

A method for operating a medical device includes activating a processor in the medical device in a low-power operating mode, measuring a first voltage level of the battery, applying at least one discharge pulse to the battery in response to the first voltage level of the battery being greater than a predetermined passivation minimum voltage threshold and less than a predetermined passivation maximum voltage threshold, measuring a second voltage level of the battery after the at least one discharge pulse, and operating the processor in the medical device in an increased-power operating mode to continue operation of the medical device only in response to the second voltage level being greater than or equal to a predetermined operating voltage threshold, the predetermined operating voltage threshold being greater than the predetermined passivation minimum voltage threshold and less than or equal to the predetermined passivation maximum voltage threshold.

There is provided an air battery including a first housings accommodating a base cell including a negative electrode, a positive electrode, and a separator disposed between the negative electrode and the positive electrode, and a second housing containing an electrolyte solution or water, in which the first housing and the negative electrode each have a hole leading to the separator, the second housing has a hole that is capable of being sealed, and the first housing and the second housing are disposed to face the hole of the first housing and the hole of the second housing each other.

A lithium primary battery pack 100 includes: a primary battery body 1 including a cathode, an anode, and a separator; a voltage converter 22 that boosts the voltage from the primary battery body 1 to 3.4-3.8 V and outputs the boosted voltage; a detector 23 that detects a decrease in the voltage of the primary battery body 1; a cathode terminal T1 and an anode terminal T2 coupled to the voltage converter 22; and a signal terminal T3 coupled to the detector 23.