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T6 Ad Hoc Team Proposal

T6 Ad Hoc Team Proposal. 9 November, 2009 Marcus Boolish. Outcome of Paris Meeting. Agreement to: Add Crush test option for smaller cells and batteries Further review Impact test. T6 Ad Hoc Team. Improving the language for the Impact test proved extremely difficult Recommendation

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T6 Ad Hoc Team Proposal

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  1. T6 Ad Hoc Team Proposal 9 November, 2009 Marcus Boolish

  2. Outcome of Paris Meeting Agreement to: Add Crush test option for smaller cells and batteries Further review Impact test

  3. T6 Ad Hoc Team Improving the language for the Impact test proved extremely difficult Recommendation Delete Impact test Replace with Crush test

  4. Reasons to Delete Impact Test • More severe for small cells • May be completely ineffective for larger cells • Not the same for the various types • Not truly repeatable • Numerous variables (some difficult to control)

  5. Impact TestToo Severe / Ineffective Note: Not all the cells shown are lithium types. But, there are lithium types in these (and other) diameter categories.

  6. Impact TestNot the Same Test

  7. Impact TestNot the Same Test The bar can (and some do) attach to the 9.1 kg mass

  8. Impact TestRepeatability / Variables (Some Difficult to Control) Angle of the bar (if any angle) Length of the bar The location of the impact The transfer of the impact weight to exactly the same position each time Whether the bar can be supported or not The bar material

  9. Proposal Modified language from IEC 60086-4

  10. Internal Short Circuit Test DevelopmentIEC SC21A – Blunt Nail Penetration Neither Impact or Crush are truly short circuit tests Work with IEC SC21A on such a test (not yet ready) Could be the inclusion of a true, repeatable internal short circuit test within IEC 62133* in the next few years. *IEC 62133 - Secondary cells and batteries containing alkaline or other non-acid electrolytes – safety requirements for portable sealed secondary cells and for batteries made from them, for use in portable applications.

  11. Internal Short Circuit Test DevelopmentIEC SC21A – Blunt Nail Penetration Images courtesy of Underwriters Laboratories

  12. Additional Proposal Adopt IEC 62281 as the UN Model Regulations for Lithium Batteries IEC 62281: Safety of primary and secondar lithium cells and batteries during transport

  13. IEC 62281 • Joint effort • Global battery and regulatory experts • Rechargeable and primary industries • IEC SC21A / IEC TC35 • Revised every 3-5 years • Allows for faster transition to best thinking in tests • Globally recognized

  14. Thank Youありがとうございます。

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