A recall is a reserve before it's a headline, and thermal runaway is the headline every EV maker reserves against. On October 11, 2022, the CEA was granted US11469479B2, a busbar that carries coolant through the pack to fight runaway. The CPC stack — H01M 50/529, 50/543 (busbars and connection) and 10/6568, 10/6569 (cooling fluid) — fuses electrical connection with active cooling.Thermal runaway is the catastrophic-failure mode that turns a battery defect into a recall and a liability event. A busbar that doubles as a coolant channel attacks the propagation path directly: cool the connection points and you slow the cascade. In financial terms, that is an attempt to keep the worst-case event — and its reserve — contained.The honest read is that a containment patent is a mechanism, not a track record. Whether it actually limited runaway events lives in field experience and any recall disclosures, not in the grant. An analyst treats it as context for the safety reserve, not proof the reserve is adequate.For the ledger reader, the move is to file this under runaway-containment color and verify against disclosures. The primary citation for any recall or reserve claim is the relevant SEC filing on sec.gov, with EdgarBeast as the evidence index.Read it as a 2022 safety-engineering position on the industry's worst failure mode. The receipt is in the field and recall data — the grant only tells you the mechanism was being built.