A power supply system including: a battery; a plug receiver into which a plug of a device can be plugged in a passenger compartment of a vehicle in which an occupant of the vehicle can ride; a floor that partitions between the passenger compartment and a space under the floor of the passenger compartment, the battery being mounted in the space under the floor; and an electric wire that extends from the battery, through the floor, and to the plug receiver and that can supply electricity.

A power supply system including: a battery; a plug receiver into which a plug of a device can be plugged in a passenger compartment of a vehicle in which an occupant of the vehicle can ride; a floor that partitions between the passenger compartment and a space under the floor of the passenger compartment, the battery being mounted in the space under the floor; and an electric wire that extends from the battery, through the floor, and to the plug receiver and that can supply electricity.

A battery holding structure includes a battery tray for storing a battery therein. A battery holding rack is configured to store the battery tray with the battery stored therein and to allow the battery tray to be pulled out along widthwise directions of the vehicle. A ground wire has one end connected to a negative terminal of the battery and another end connected to a grounding member on a vehicle frame. A movement prevention member fixes the other end of the ground wire to the battery tray and prevents the battery tray from being pulled out to one side along the widthwise directions of the vehicle with the ground wire which is connected to the grounding member.

A battery holding structure includes a battery tray for storing a battery therein. A battery holding rack is configured to store the battery tray with the battery stored therein and to allow the battery tray to be pulled out along widthwise directions of the vehicle. A ground wire has one end connected to a negative terminal of the battery and another end connected to a grounding member on a vehicle frame. A movement prevention member fixes the other end of the ground wire to the battery tray and prevents the battery tray from being pulled out to one side along the widthwise directions of the vehicle with the ground wire which is connected to the grounding member.

An electrical power distribution module for a vehicle. The electrical power distribution module provided with an upper module and a lower module. The upper module provided with circuit boards for various vehicle components and a temperature control system. The lower module provided with a plurality of isolated busbars, isolated from the surrounding structure. Each isolated busbar is one of a positive busbar, a negative busbar, and a ground busbar. The plurality of isolated busbars are arranged on opposite sides of the lower module and are arranged in an alternating fashion based on polarity. The plurality of isolated busbars are electrically connected to the circuit boards. The plurality of electrical connectors are spaced apart from each other and are configured to provide power and ground connections for the vehicle components. The plurality of isolated busbars are configured to carry different voltages.

Systems and methods are provided for generating electric power using low grade thermal energy from a vehicle. The methods may include surrounding at least a portion of a coolant conduit system with a flexible thermo-electrochemical cell including a nanoporous cathode electrode, a nanoporous anode electrode, and an electrolyte. A coolant fluid may be circulated through the coolant conduit system, which is in thermal communication with a power generating unit, such as an internal combustion engine or fuel cell stack. The method includes maintaining a temperature gradient in the electrolyte solution by contacting the anode electrode with the coolant conduit system, and exposing the cathode electrode to a temperature lower than a temperature of the coolant conduit system. Generated electrical charges can be collected for subsequent use.

Systems and methods are provided for generating electric power using low grade thermal energy from a vehicle. The methods may include surrounding at least a portion of a coolant conduit system with a flexible thermo-electrochemical cell including a nanoporous cathode electrode, a nanoporous anode electrode, and an electrolyte. A coolant fluid may be circulated through the coolant conduit system, which is in thermal communication with a power generating unit, such as an internal combustion engine or fuel cell stack. The method includes maintaining a temperature gradient in the electrolyte solution by contacting the anode electrode with the coolant conduit system, and exposing the cathode electrode to a temperature lower than a temperature of the coolant conduit system. Generated electrical charges can be collected for subsequent use.

A work vehicle includes a front wheel, a rear wheel, a liquid tank, a front-wheel fender, a rear-wheel fender, a floor portion, and an electric-component room. The front wheel, the rear wheel, and the liquid tank are supported by a vehicle body. The front-wheel fender is disposed to surround a portion around the front wheel. The rear-wheel fender is disposed to surround a portion around the rear wheel. The floor portion is provided between a lower end portion of the front-wheel fender and a lower end portion of the rear-wheel fender. The electric-component room is provided on an upper surface of the floor portion, and houses electric components in a space formed with the floor portion. The electric-component room is disposed at an outer side of the liquid tank in a vehicle width direction of the vehicle body.

A battery support structure includes a pedestal section configured to come in contact with a first surface of a battery in order to support the battery, a locking protruding part formed at the pedestal section, and a locking part that includes an inserting part arranged to be inserted in a first locking hole and that is configured to come in contact with at least a portion of a third surface of the battery facing the opposite side of the first surface, wherein the battery is supported in a state in which the inserting part is inserted in the first locking hole, and a second locking hole is formed in the locking protruding part at a position deviated a predetermined distance from the first locking hole toward a side closer to the third surface of the supported battery.

A battery support structure includes a pedestal section configured to come in contact with a first surface of a battery in order to support the battery, a locking protruding part formed at the pedestal section, and a locking part that includes an inserting part arranged to be inserted in a first locking hole and that is configured to come in contact with at least a portion of a third surface of the battery facing the opposite side of the first surface, wherein the battery is supported in a state in which the inserting part is inserted in the first locking hole, and a second locking hole is formed in the locking protruding part at a position deviated a predetermined distance from the first locking hole toward a side closer to the third surface of the supported battery.