{
  "$type": "site.standard.document",
  "description": "An energy storage system is described that is connectable to at least one of a power generating system, a grid and a load, the energy storage system including a battery system, wherein the battery system comprises a plurality of battery cells, a cell balancing unit for performing cell balancing of…",
  "path": "/patents/990946",
  "publishedAt": "2013-05-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/54",
    "SAMSUNG SDI CO LTD [KR]"
  ],
  "textContent": "An energy storage system is described that is connectable to at least one of a power generating system, a grid and a load, the energy storage system including a battery system, wherein the battery system comprises a plurality of battery cells, a cell balancing unit for performing cell balancing of the plurality of battery cells, the cell balancing unit comprising a plurality of cell balancing resistors, each arranged to be selectively connected across a respective one of the battery cells and a cell balancing controller arranged to vary a time for which the cell balancing resistors are connected across the battery cells in dependence on the temperature of at least one of the cell balancing resistors.",
  "title": "Energy storage system"
}