Consumer Electronics Standards<br>Standards from a few key organizations have had a significant impact on lithium-ion battery development and safety. These organizations are UL, IEC, and IEEE. These standards are “consensus” standards which are developed with input from representatives from industry, user, academic, and government groups. Generally, the membership of a standards development group must vote on and approve changes to these standards. Although these standards are voluntary within the US, many of the required tests described are highly derivative of the UN testing requirements, and thus most cells in commerce will meet most of the voluntary standard requirements. In addition, all of the major US cell phone carriers require the CTIA mark, and thus, effectively make compliance with IEEE 1725 mandatory for the majority of cell phones. Similarly, major US distributors of consumer electronics devices generally have policies requiring UL listing of devices thus making compliance with UL testing requirements widespread. We discuss the relevant standards developed by these organizations below.<br><br>UL Standards<br>Two UL standards are particularly important for lithium-ion cells and batteries: UL 1642, “Standard for Lithium Batteries,” and UL 2054, “Standard for Household and Commercial Batteries.” Both of these standards are written for the purpose of ensuring consumer safety; in particular, they are designed to “reduce the risk of fire or explosion when batteries are used in a product” and to “reduce the risk of injury to persons due to fire or explosion when batteries are removed from a product to be transported, stored, or discarded.” User-replaceable batteries, as opposed to technician-replaceable batteries, are subject to additional test requirements, including flaming particle and projectile tests. A summary of UL testing requirements from both UL 1642 and UL 2054 is found in Table 4. Note that many of the tests in the two standards are identical.<br><br>UL is in the process of developing or updating a number of additional standards for lithium-ion battery applications including:<br><br>UL Subject 1973 Batteries for use in Light Electric Rail (LER) applications and stationary applications<br>UL Subject 2271 Batteries for use in Light Electric Vehicle (LEV) Applications<br>UL Subject 2575 Standard for Lithium Ion Battery Systems for Use in Electric Power Tool and Motor Operated, Heating and Lighting Appliances<br>UL Subject 2580 Batteries for use in electric vehicles ...
正在翻譯中..