Board type ESS battery pack

1 . An energy storage system (ESS) battery pack comprising:

at least one battery module comprising a plurality of battery cells and a cell housing provided in a hollow board shape to accommodate the plurality of battery cells therein; and

a system module disposed on a lower portion of the at least one battery module and comprising a battery management system, and a box-shaped system housing comprising a system receiver formed to accommodate the battery management system in a first side and at least one docking unit to vertically insert a lower end of the cell housing in a second side laterally spaced from the first side,

wherein when the at least one battery module is lifted from the at least one docking unit, the at least one battery module is provided to be separated from the system module,

wherein the at least one battery module further comprises a connector disposed on the lower end of the cell housing,

wherein the at least one docking unit comprises:

a guide barrier wall configured to guide the lower end of the cell housing to be vertically inserted; and

a terminal member electrically connected to and in contact with the connector,

wherein the connector comprises:

a connector housing provided inside the lower end of the cell housing; and

a plug vertically protruding to outside the lower end of the cell housing, and

wherein the terminal member comprises:

a socket portion provided in a groove shape matching the plug;

a spring interposed inside the socket portion; and

a metal plate provided on an upper end of the spring.

2 . The ESS battery pack of claim 1 , wherein the battery cells are pouch-type battery cells, and

wherein a thickness of the cell housing corresponds to a thickness of one of the pouch-type battery cells.

3 . The ESS battery pack of claim 1 , wherein the lower end of the cell housing is inserted straight into the at least one docking unit by a predetermined depth and is vertically disposed with respect to an upper surface of the system module.

4 . The ESS battery pack of claim 1 , wherein the terminal member and the battery management system are connected to each other by a metal wire, and

wherein the metal wire has a first end connected to the spring and a second end connected to the battery management system, and passes through the guide barrier wall.

5 . The ESS battery pack of claim 1 , wherein the system receiver is partitioned from the at least one docking unit by the guide barrier wall.

6 . The ESS battery pack of claim 1 , wherein the at least one battery module is a plurality of battery modules, and

wherein the at least one docking unit is a plurality of docking units capable of inserting a respective one of the plurality of battery modules.

7 . An energy storage system (ESS) battery pack comprising:

at least one battery module comprising a plurality of battery cells and a cell housing provided in a hollow board shape to accommodate the plurality of battery cells therein; and

a system module disposed on a lower portion of the at least one battery module and comprising a battery management system, and a box-shaped system housing comprising a system receiver formed to accommodate the battery management system in a first side and at least one docking unit to vertically insert a lower end of the cell housing in a second side laterally spaced from the first side,

wherein when the at least one battery module is lifted from the at least one docking unit, the at least one battery module is provided to be separated from the system module, and

wherein the system receiver comprises two parts connected to each other by a hinge to surround the battery management system, and one of the two parts is opened and closed by rotating with respect to the hinge as an axis.

8 . An energy storage system (ESS) battery pack comprising:

at least one battery module comprising a plurality of battery cells and a cell housing provided in a hollow board shape to accommodate the plurality of battery cells therein; and

a system module disposed on a lower portion of the at least one battery module and comprising a battery management system, and a box-shaped system housing comprising a system receiver formed to accommodate the battery management system in a first side and at least one docking unit to vertically insert a lower end of the cell housing in a second side laterally spaced from the first side,

wherein when the at least one battery module is lifted from the at least one docking unit, the at least one battery module is provided to be separated from the system module, and

wherein the cell housing comprises:

a housing body having an open surface, and comprising supporters capable of supporting the plurality of battery cells in multiple steps inside; and

a housing cover hinge-coupled to an upper end of the housing body to be rotatable and formed to open and close the open surface of the housing body.