Also be aware that the DENAN law in Japan has been amended so that some Lithium Ion Batteries are now regulated.
Japan's Ministry of Economy, Trade and Industry (METI) has added "Lithium batteries:" into a list of regulated DENAN products. The new requirements for Lithium batteries will be implemented on November 20, 2008. Scope: Lithium batteries with its internal energy of 400Wh/L or higher are regulated by DENAN as Non-Specified Product (NSP). NSP requires a PSE Mark (PSE in a circle). Compliance with DENAN Technical Requirements Appendix 9 may be confirmed by a third party testing or manufacturer's own testing. Test reports (and/or certificates) may be required upon request from METI. Lithium batteries physically detached from an end product in a package are covered by DENAN. Replacement Lithium batteries are covered by DENAN. Applicable standards are JIS C8712 and C8714 which are similar, but not identical to IEC 62133 Standard (or UL1642). Due to METI's concern about recent accidents from Lithium batteries, JIS Standards include several additional tests such as forced internal short circuit test. Therefore, batteries which comply with UL Standard or IEC Standard need additional tests to satisfy DENAN. I contacted METI on this issue and they commented that English version of the requirements will be released this month sometime............ From: [email protected] [mailto:[email protected]] On Behalf Of Scott B. Lacey Sent: Monday, July 07, 2008 11:41 AM To: Scott Xe Cc: [email protected] Subject: RE: UL 2054 testing for lithium batteries Richard and Scott, Interestingly, some years ago I worked on a project involving a reaction calorimeter. One use (for some customers) was to test battery chemistries for just this type of runaway condition. The materials being tested were heated in a containment vessel until an exothermic reaction occurred. Temperature and pressure were both tracked throughout. The idea was to determine the conditions preceding a runaway reaction so that protection could be added to battery packs to keep them below the critical temperature and pressure. I suspect the Li-ion failures involve a flaw in the protection scheme implementation rather than a lack of understanding the mechanism of failure. In the meantime I would advise anyone using Lithium-ion batteries to avoid recharging heavily discharged ones until they have cooled for a while. The same goes for drawing high current immediately after a charge. Scott B. Lacey On 7 Jul 2008 at 22:29, Scott Xe wrote: > Richard, > > If you want to prevent the battery pack from explosion/fire, compliance of > those standards might not accomplish it for the time being. UL 2054, UL > 1642 and UL 60950-1 were prepared and published before Sony's battery > recall. All the standards are being revised to address the issue. After a > large scale of Sony's battery recall, the Li-ion battery pack continues to > explode and catch fire in a smaller scale. The users are awaiting the new > replacement of battery pack or a firm solution to the probable explosion of > existing Li-ion battery pack. > > Regards. > > Scott > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Thursday, July 03, 2008 12:24 AM > To: [email protected]; [email protected]; [email protected] > Subject: RE: UL 2054 testing for lithium batteries > > Also.....For end use systems seeking compliance with UL 60950-1, see > Annex P.1 with reference to cl. 4.3.8 > > Kaz > [email protected] > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of Ron > Pickard, RPQ > Sent: Wednesday, July 02, 2008 11:07 AM > To: 'Brian O'Connell'; '[email protected]' > Subject: RE: UL 2054 testing for lithium batteries > > Richard, > > > > IMHO, if the lithium batteries are user replaceable (such as a removable > battery pack), then they would need to be separately approved to UL > 2054. I > say that because in my experience, UL has required it in past Listing > efforts of products with them. And, if this is a cell phone application, > please note that the CTIA has recently imposed requirements for lithium > batteries. > > Supporting this, from UL2054's scope: > > > > - These requirements cover portable primary (nonrechargeable) and > secondary > (rechargeable) batteries for use as power sources in products. These > batteries consist of either a single electrochemical cell or two or more > cells connected in series, parallel, or both, that convert chemical > energy > into electrical energy by chemical reaction. > > - These requirements are intended to reduce the risk of fire or > explosion > when batteries are used in a product. The proper use of these batteries > in a > particular application is dependent on their use in a complete product > that > complies with the requirements applicable to such a product. > > - These requirements are intended to cover batteries for general use and > do > not include the combination of the battery and the host product which > are > covered by requirements in the host product > > standard. > > - These requirements are also intended 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. > > - These requirements do not cover the toxicity risk that results from > the > ingestion of a battery or its contents, nor the risk of injury to > persons > that occurs if a battery is cut open to provide access to its contents. > > > > The battery manufacturer would quite likely be already aware of all of > this. > They would be the one to approach for getting this work done. > > > > Also, in addition to what Brian stated about shipping, the US and > international shipping authorities have specific testing and labeling > requirements for lithium batteries or products containing lithium > batteries. > Testing involves the UN T1-T8 tests. > > > > IHTH. > > > > Best regards, > > > > Ron Pickard > > RPQ Consulting > > 7372 West Luke Avenue > > Glendale, AZ 85303 > > +623.512-3451 tel, +623.848-9033 fax > > [email protected] > > www.rpqconsulting.com <http://www.rpqconsulting.com/> > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of Brian > O'Connell > Sent: Wednesday, July 02, 2008 7:21 AM > To: '[email protected]' > Subject: RE: UL 2054 testing for lithium batteries > > > > The following are personal opinions only. > > > > In general, conformity to the applicable standard is always > > "necessary"; but not always 'required'. In any case, note that UL > > 1642 is scoped specifically for Li batteries > > > > In particular, 'it depends'. Is the charger and end-use > > installation a fire or shock hazard if a battery, dies a violent > > death ? Is there any normal or abnormal operating condition in > > the charger or the end-use install that could result in battery > > damage/explosion/fire ? > > > > Also, there are separate DOT requirements for the shipment of > > some types of Lithium batteries. > > > > luck, > > Brian > > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]]On Behalf Of > > Gartman, Richard > > Sent: Wednesday, July 02, 2008 6:51 AM > > To: [email protected] > > Subject: RE: UL 2054 testing for lithium batteries > > > > I am looking for when UL 2054 testing is necessary for > > rechargeable lithium batteries? > > > > Required on cell phone batteries? > > Required on consumer electronic? > > > > All perspectives on rechargeable lithium batteries are welcome. > > > > Thank you > > W. Richard Gartman, MS, CSP > > > > - > > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society > > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > > > To post a message to the list, send your e-mail to [email protected] > > > > Instructions: http://listserv.ieee.org/request/user-guide.html > > > > List rules: http://www.ieee-pses.org/listrules.html > > > > For help, send mail to the list administrators: > > > > Scott Douglas [email protected] > > Mike Cantwell [email protected] > > > > For policy questions, send mail to: > > > > Jim Bacher: [email protected] > > David Heald: [email protected] > > > > All emc-pstc postings are archived and searchable on the web at: > > > > http://www.ieeecommunities.org/emc-pstc > > > > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to [email protected] > > Instructions: http://listserv.ieee.org/request/user-guide.html > > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > > Scott Douglas [email protected] > Mike Cantwell [email protected] > > For policy questions, send mail to: > > Jim Bacher: [email protected] > David Heald: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to [email protected] > > Instructions: http://listserv.ieee.org/request/user-guide.html > > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > > Scott Douglas [email protected] > Mike Cantwell [email protected] > > For policy questions, send mail to: > > Jim Bacher: [email protected] > David Heald: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to [email protected] > > Instructions: http://listserv.ieee.org/request/user-guide.html > > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > > Scott Douglas [email protected] > Mike Cantwell [email protected] > > For policy questions, send mail to: > > Jim Bacher: [email protected] > David Heald: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > > http://www.ieeecommunities.org/emc-pstc > - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
