A mobile charging station generating electricity by an Enclosed Photovoltaic Device and electromagnetic energy receiving unit, mounted on top of an Electric Vehicle Platform or chassis, housing a power storage system, inverters, power outlets and wireless power transmitters to provide electricity to the electric vehicle platform and other electric vehicles. This mobile charging station is configured to be autonomously driven to any location where vehicles can be recharged at any time.

Disclosed are a transition metal precursor for preparation of a lithium transition metal oxide, in which a ratio of tap density of the precursor to average particle diameter D50 of the precursor satisfies the condition represented by Equation 1 below, and a lithium transition metal oxide prepared using the same. $\begin{array}{cc}0<\frac{\mathrm{Tap}\mathrm{density}}{\begin{array}{c}\mathrm{Average}\mathrm{particle}\mathrm{diameter}D50\\ \mathrm{of}\mathrm{transition}\mathrm{of}\mathrm{metal}\mathrm{precursor}\end{array}}<3500\left(g/\mathrm{cc}.Math.\mathrm{cm}\right)& \left(1\right)\end{array}$

The present invention provides a multi-coil inductive power transfer primary comprising a plurality of coil. A power transfer regime is selected based on a determined load on each of the plurality of coils.

An electrical system can include a rechargeable energy storage system (RESS) and a power inverter connected to the RESS. The power inverter can be configured to provide electrical power to a traction motor. The electrical system includes a plurality of machine windings connected between a plurality of first switches and the traction motor. Each switch of the plurality of first switches is configured to transition between a closed state to allow current flow between the power inverter and the traction motor. The electrical system includes a plurality of inductor windings connected between a plurality of second switches and an off-board power source. Each switch of the plurality of second switches is configured to transition between a closed state to allow current flow between the off-board power source and the power inverter to charge the RESS.

An electrical power system for a vehicle comprising a base powernet and a primary powernet electrically connected to primary safety critical loads. A switch is disposed between the base powernet and the primary powernet. The switch is configured to transition between a closed state that electrically connects the base powernet to the primary powernet and an open state that disconnects the base powernet from the primary powernet.

A method comprises determining a first pressure increase in an electrochemical energy storage unit based on a first repetition rate, detecting that the first pressure increase has exceeded a first threshold value, determining a second pressure increase in the energy storage unit based on a second repetition rate, the second repetition rate being greater than the first repetition rate, detecting that the second pressure increase exceeds a second threshold value, and outputting a signal to a control unit based on detecting that the second pressure increase has exceeded the second threshold value.

A battery charging system includes a battery removably mounted on an electric power device using electric power, a charging device configured to charge the battery using renewable power which is electric power generated from renewable energy, and a server configured to communicate with the charging device. The charging device is configured to control charging of the battery accommodated in an accommodation unit on the basis of reception information received from the server. The server is configured to compare receivable power, which is the renewable power capable of being received by the charging device, with a threshold value and configured to transmit transmission information for causing the charging device to control the charging of the battery to the charging device on the basis of a result of comparing the receivable power with the threshold value.

A battery system has a battery cell including a can, and a ceramic substrate, including a patterned metallized surface, mounted to the can via a thermally conductive adhesive. The battery system also has a monolithic integrated circuit that measures and transmits data about the cell mounted to the patterned metallized surface such that the ceramic substrate and monolithic integrated circuit are electrically isolated from one another.

A secondary battery includes a battery element including a positive electrode, a negative electrode, and an electrolytic solution, a housing member configured to accommodate the battery element, and a safety valve mechanism attached to the housing member. The safety valve mechanism includes a valve member including an opening valve portion configured to be opened; and an opening member including a plurality of opening portions radially arranged in a region opposed to the opening valve portion from a center of the region as a base point, and a plurality of protrusion portions radially arranged in a region outside the plurality of opening portions from the center and the plurality of protrusion portions protrude toward the plurality of opening portions. A number of the opening portions and a number of the protrusion portions are equal to each other, and each of the plurality of opening portions and each of the plurality of protrusion portions are opposed to each other in a direction toward the center.

Provided is electric power equipment that allows a battery to be installed and removed with ease. The electric power equipment (1) includes a main body (2) defining a battery receiving recess (40) having an open upper end, and a battery (20) configured to be received in the battery receiving recess, wherein an upper part of a front end part of the battery is provided with a projection (108) projecting in a forward direction, and a rear end part of the battery is provided with a grip, and wherein an upper edge of the front end part of the battery receiving recess is provided with a supporting surface (36) configured to support a lower surface of the projection at least when the battery is being removed from the battery receiving recess.