Mining Project: Battery Safety Enhancements for Underground Coal Mines
To conduct research needed to make recommendations and guide policy or program decisions regarding the safety of batteries used in underground coal mines.
|Keywords||explosions, fires, underground mining|
This project conducted research needed to make recommendations and guide policy or program decisions regarding the safety of batteries used in underground coal mines.
The research objectives for this project were addressed by way of the following project tasks:
- to conduct experimental research of lithium battery ignition of flammable methane-air mixtures with the aim of demonstrating the potential ignition hazard of lithium batteries considered intrinsically safe, and then to identify potentially safer lithium chemistry alternatives based on comparative experimental evidence;
- to gather information from large-format lead acid battery manufacturers, refurbishment service providers, and equipment users with the aim of developing recommendations for enhancing battery assembly construction, charging cable protection, and providing ignition safe disconnects; and
- to develop guidelines to improve battery safety for underground coal mine communications and tracking system equipment, focusing on battery selection, integration, use, and maintenance.
Publications & Products
- Are lithium-ion cells intrinsically safe? (2013-11)
A NIOSH study investigating the potential for lithium-ion battery thermal runaway from an internal short circuit in equipment approved as permissible for use in underground coal mines.
- Further Study of the Intrinsic Safety of Internally Shorted Lithium and Lithium-ion Cells Within Methane-air (2014-11)
A study that continues research into the potential for lithium and lithium-ion battery thermal runaway from an internal short circuit in equipment for use in underground coal mines.