Portable and detachable mobile battery

Detachable grid-connected mobile battery combining vehicle surplus energy charging and a 5-mode integrated inverter

This technology captures surplus energy generated during vehicle deceleration, braking, or downhill driving via an alternator to charge a mobile battery. The battery can then be detached and used as a power source in homes or offices through an inverter.

Conventional internal combustion engine vehicles fail to recover surplus energy lost to friction during braking or downhill driving. Furthermore, there has been a lack of integrated charging, discharging, and management systems to utilize recovered energy as an auxiliary power source outside the vehicle.

This technology selectively charges the mobile battery based on driving conditions monitored by the ECU and a monitoring unit. An integrated inverter performs voltage boosting, DC/AC conversion, and power factor correction to supply active/reactive power to home or office grids or operate as a distributed ESS. Applicable to portable batteries for camping or emergency power and utility-commanded V2G distributed energy services, it allows wasted driving energy to be used for reducing household electricity costs and improving grid power factor.

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Key Features:

• A battery pack consisting of at least one cell group, with operation and cell balance managed by battery protection and cell balancing circuits
• A voltage converter that boosts the DC voltage of the mobile battery to the input DC voltage level of the inverter unit
• An integrated inverter controller that manages the inverter unit through five operating modes: active power supply, unity power factor compensation, grid active/reactive power provision, and grid charging
• A charging circuit that rectifies AC voltage from the vehicle alternator, adjusts it to a charging DC voltage level, and switches for selective charging

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