article_snippet.sent: Thermal images show copper inside the battery reaching temperatures of at least 1,085°C (1,985°F) causing jets of molten material to burst from at least 1,085°C (1,985°F) vent.
article_snippet.sent: Copper inside melted, indicating temperatures of at least 1,085°C (1,985°F), and Copper caused molten material to stream from the vent (pictured)
article_snippet.sent: During tests, one cell remained intact during battery failure and as the heat-generating reactions continued, hot gas followed by molten material jetted out through the battery’s vent (pictured left to right).
article_snippet.sent: Cell 1 remained intact during battery failure and as the heat-generating reactions continued, hot gas followed by molten material jetted out through the battery’s vent.
article_snippet.sent: The copper material inside Cell 1 melted, indicating internal temperatures of at least 1,085°C (1,985°F).
highlights_snippet.sent: Copper inside one cell reached temperatures of at least 1,085°C (1,985°F)
  
highlights_snippet.sent: The heat also caused molten material to stream from the battery's vent .