A battery management system (BMS) includes at least one sub-BMS and a main BMS. The at least one sub-BMS measures information about a battery, and generates an activation signal according to operating state. The main BMS receives the activation signal and determines the operating state of the at least two sub-BMSs. If the at least two sub-BMSs normally operate, the main BMS generates a synchronization signal and transfers the same to the sub-BMSs. The at least one sub-BMS measures the information about the battery according to the synchronization signal.

Battery management system and driving method thereof

A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). To charge, the machines employ electrical current from an external source, such as the electrical grid or an electrical service of an installation location. By default, each portable electrical energy storage device is disabled from accepting a charge unless it receives authentication information from an authorized collection, charging and distribution machine, other authorized charging device, or other authorized device that transmits the authentication credentials. Also, by default, each portable electrical energy storage device is disabled from releasing energy unless it receives authentication information from an external device to which it will provide power, such as a vehicle or other authorization device.

Apparatus, method and article for authentication, security and control of power storage devices, such as batteries

A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). To avoid theft and tampering of the portable electrical energy storage devices, by default, each portable electrical energy storage device is locked in and operably connected to the vehicle to which it provides power unless the vehicle comes within the vicinity of a collection, charging and distribution machine or other authorized external device such as that in a service center. Once within the vicinity of a collection, charging and distribution machine or other authorized external device a locking mechanism in the vehicle or within the portable electrical energy storage device unlocks and allows the portable electrical energy storage device to be exchanged or serviced.

Apparatus, method and article for physical security of power storage devices in vehicles

A battery system and method of providing a state of charge of for the system in one embodiment includes at least one first cell, the at least one first cell having a first battery chemistry exhibiting a first open circuit potential, and at least one second cell in series connection with the at least one first cell, the at least one second cell having a second battery chemistry exhibiting a second open circuit potential, wherein the at least one first cell exhibits an open circuit potential with a center slope that is greater than the center slope of the open circuit potential exhibited by the at least one second cell.

Battery system and method for system state of charge determination

A hybrid vehicle includes a control apparatus having an engine controller and a motor controller A first battery and a second battery which has higher voltage than the first battery are provided An electric power generator which is driven by the engine is provided for charging the first battery The second battery and the electric motor are connected through the motor controller, and the first battery or the electric power generator is connected to the motor controller and the engine controller In addition, the first battery or the electric power generator is connected to the engine controller for maintaining a power supply for operation maintenance of the engine controller The second battery and the electric motor are connected through the motor controller The second battery or the electric motor is connected to the motor controller through a DC/DC converter As a result, even if the high voltage line including the electric motor in the control apparatus for the hybrid vehicle has failed, this system can drive the vehicle

Control apparatus for hybrid vehicle

A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.

Battery and related method

The disclosure relates to bipolar cells including electrodes surrounding a collector (10). Embodiments of the bipolar cells include a collector (10) containing a high­polymer material. The disclosure also relates to bipolar electrode batteries containing bipolar cells including a collector body containing electrically conductive high­polymer or electrically conductive particles distributed in a high-polymer. By adding such high molecular weight polymer material to the collector, the weight of the collector may be reduced and the output power density per weight of the battery may be improved. The disclosure further relates to methods of forming collecting bodies and electrodes for bipolar cells using an inkjet printing method. Bipolar cells according to the present invention may be used to fabricate batteries such as lithium ion batteries, which may be connected to form battery modules used, for example, to provide electrical power for a motor vehicle.

Bipolar Electrode Batteries and Methods of Manufacturing Bipolar Electrode Batteries

PROBLEM TO BE SOLVED: To provide a power supply apparatus for rapidly progressing charging/discharging between a high-capacity battery and a high-output battery connected, in parallel. SOLUTION: The high-capacity battery 110 and the high-output battery 120 having an internal resistor and a capacity smaller than the high-capacity battery 110 are connected in parallel via a DC-DC converter 130 for receiving a voltage from the high-capacity battery 110, boosting the voltage and applying the boosted voltage to the high-output battery 120. A controller 140 is provided, and switches a voltage boosting state for boosting the voltage using the DC-DC converter 130 and a voltage boosting stopping state for stopping the voltage boosting and connecting the high-capacity battery 110 and the high-output battery 120, in parallel. COPYRIGHT: (C)2006,JPO&NCIPI

Power supply apparatus and vehicle equipped with same

An inductor (L), capacitor (C) and alternator (OSC) are connected in series to the positive and negative poles of a battery (15). The temperature of the battery (15) is increased by causing the alternator (OSC) to generate an alternating current having the resonance frequency of the inductor (L) and capacitor (C). The alternating current is consumed by the internal resistance of the battery (15) due to the resonance of the inductor (L) and capacitor (C), and the temperature of the battery (15) therefore rises due to the heat thereby generated in the battery. In this way, the temperature of the battery (15) can be effectively increased with minimum power consumption.

Battery temperature increasing device and method

PROBLEM TO BE SOLVED: To provide means of improving battery performance of a bipolar battery. SOLUTION: The bipolar battery comprises a collector 10, a positive electrode 20 electrically connected to one surface of the collector 10, a negative electrode 30 electrically connected to the other surface of the collector 10, and an electrolyte layer 40 put between the electrodes. The battery is characterized in that the collector 10 contains polymeric materials. COPYRIGHT: (C)2006,JPO&NCIPI

Takaaki Abe

Papers

Battery and related method

Bipolar Electrode Batteries and Methods of Manufacturing Bipolar Electrode Batteries

Power supply apparatus and vehicle equipped with same

Battery temperature increasing device and method

Biploar battery and its manufacturing method