Battery pack, battery apparatus including the same, and cell balancing method thereof
AssigneeSnu R&Db Foundation
InventorJung Woo Lee
Life of this patent
Estimating the term…
Abstract
A battery pack includes: a cell module including a plurality of battery cells; an antenna connected to each of the battery cells; and a waveguide installed at one side of the cell module and having the antenna housed therein.
Claims10
A battery pack comprising:
- a cell module comprising a plurality of battery cells;
- an antenna connected to each of the battery cells;
- and
- a waveguide installed at one side of the cell module and having the antenna housed therein,
- wherein the antenna is configured to transmit and receive electromagnetic waves within the waveguide,
- wherein the waveguide has a height corresponding to ½ of the wavelength of the electromagnetic waves transmitted to or received from the antenna.
A battery apparatus comprising:
- a cell module comprising a plurality of battery cells each having an antenna provided therein;
- a waveguide installed at one side of the cell module and having the antenna housed therein;
- and
- a BMS configured to select a transmitting cell and one or more receiving cells based on states of charge (SOC) of the respective cells, and form an electromagnetic wave transmission/reception path between an antenna connected to the transmitting cell and antennas connected to the one or more receiving cells,
- wherein the antenna is configured to transmit and receive electromagnetic waves within the waveguide,
- wherein the wavequide has a height corresponding to ½ of the wavelength of the electromagnetic waves transmitted to or received from the antenna.
A cell balancing method of a battery apparatus which includes a cell module including a plurality of battery cells each having an antenna provided therein, a waveguide installed at one side of the cell module and having the antenna housed therein, and a BMS connected between the battery cell and the antenna, the cell balancing method comprising the steps of:
- measuring, by the BMS, SOC of the respective cells included in the cell module;
- determining, by the BMS, a transmitting cell and one or more receiving cells based on the SOC measurement results;
- forming, by the BMS, an electromagnetic wave path such that an antenna connected to the transmitting cell and antennas connected to the one or more receiving cells perform wireless power transmission, and
- transmitting and receiving wireless power between the antenna connected to the transmitting cell and antennas connected to the one or more receiving cells within the waveguide,
- wherein the wavequide has a height corresponding to ½ of the wavelength of the electromagnetic waves transmitted to or received from the antenna.
Dependencies are inferred from the claim text.