Provided is a secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution includes a boron compound having a quaternary structure expressed by Formula (1). ##STR00001##

A negative electrode active material includes a core particle comprising silicon; and at least one metal element selected from the group consisting of: Ge, Sn, Ni, Mo, W, Ag, Pd, Cu, Bi, Fe, Co, Mn, Cr, V, Ga, B, Sb, In, Te, Cd, Rh, Ru, Nb, Ta, Re, Os, Ir, Pt, Pb and P. The negative electrode active material has an elemental composition that varies continuously from a center of the core particle to a surface of the core particle. A negative electrode, a battery, an electric vehicle, an electric storage apparatus, an electronic apparatus and a power storage system each include the negative electrode active material.

A negative electrode active material includes a core particle comprising silicon; and at least one metal element selected from the group consisting of: Ge, Sn, Ni, Mo, W, Ag, Pd, Cu, Bi, Fe, Co, Mn, Cr, V, Ga, B, Sb, In, Te, Cd, Rh, Ru, Nb, Ta, Re, Os, Ir, Pt, Pb and P. The negative electrode active material has an elemental composition that varies continuously from a center of the core particle to a surface of the core particle. A negative electrode, a battery, an electric vehicle, an electric storage apparatus, an electronic apparatus and a power storage system each include the negative electrode active material.

A battery charge system includes an on board charge module, a high voltage battery pack unit and a controller. The on board charge module includes a power conversion device, a switching unit coupled to the power conversion device, and an electrothermal element coupled to the switching unit. The power conversion device includes an AC/DC converter and a bidirectional DC/DC converter. The AC/DC converter has an input terminal coupled to an AC terminal, and an output terminal coupled to an input terminal of the bidirectional DC/DC converter. The high voltage battery pack unit includes a first switching element and a high voltage battery pack. The high voltage battery pack is coupled through the first switching element to an output terminal of the bidirectional DC/DC converter. The controller is coupled to the power conversion device and the switching unit, and is configured to control the power conversion device and the switching unit.

A power storage device includes a power storage unit including one or a plurality of cells, a first controller for performing control relating to the power storage unit, a first power line for supplying a first power to be output from the power storage unit to a load, a second power line for supplying a second power smaller than the first power to a second controller included in an external device, and a communication line used by the first and second controllers to communicate with each other.

A power storage device includes a power storage unit including one or a plurality of cells, a first controller for performing control relating to the power storage unit, a first power line for supplying a first power to be output from the power storage unit to a load, a second power line for supplying a second power smaller than the first power to a second controller included in an external device, and a communication line used by the first and second controllers to communicate with each other.

The present disclosure relates to a battery module that includes a housing having a first protruding shelf along a first perimeter of the housing, a second protruding shelf along a second perimeter of the housing, where the first and second protruding shelves each include an absorptive material configured to absorb a first laser emission. The battery module also includes an electronics compartment cover configured to be coupled to the housing via a first laser weld, and a cell receptacle region cover configured to be coupled to the housing via a second laser weld. The electronics compartment cover has a first transparent material configured to transmit the first laser emission toward the first protruding shelf and the cell receptacle region cover has a second transparent material configured to transmit the first laser emission or a second laser emission toward the second protruding shelf.

The present disclosure relates to a battery module that includes a housing having a first protruding shelf along a first perimeter of the housing, a second protruding shelf along a second perimeter of the housing, where the first and second protruding shelves each include an absorptive material configured to absorb a first laser emission. The battery module also includes an electronics compartment cover configured to be coupled to the housing via a first laser weld, and a cell receptacle region cover configured to be coupled to the housing via a second laser weld. The electronics compartment cover has a first transparent material configured to transmit the first laser emission toward the first protruding shelf and the cell receptacle region cover has a second transparent material configured to transmit the first laser emission or a second laser emission toward the second protruding shelf.

A vehicle includes: a power receiving device configured to receive power from a power transmission device in a non-contact manner in a state of facing the power transmission device; a housing configured to store a power reception port to which an external power system is connected via a connecting tool, the housing including: an opening allowing access to the power reception port therethrough; a lid member covering the opening to be openable and closable; and a locking mechanism configured to lock the lid member in a state of closing the opening; and a controller configured to control whether access to the power reception port is permitted, and configured to drive the locking mechanism when the power receiving device starts receiving power such that the lid member is locked not to be opened.

A vehicle information providing device has a history information accumulation unit configured to sequentially acquire at least one of driving location information, power consumption information and charging facility information from an in-vehicle device of a vehicle having at least an electric motor as a traveling drive source and accumulate the at least one information as driving history information, an input unit configured to input at least a departure point and a destination point, a planned route acquisition unit configured to acquire a planned route from the departure point to the destination point, and a map memory configured to store a control map in which a route of section and a characteristic value are associated with each other on a basis of the driving history information accumulated in the history information accumulation unit.