Timeline for Lithium Ion Battery Charging Practices
Current License: CC BY-SA 3.0
9 events
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| May 23, 2016 at 19:07 | comment | added | Bill Dubuque | Why not remove the false claim to avoid confusion? Remark that Lithium metal usually only plates out when cells are abused or defective, e.g. when they are charged at too high current, or in extremely cold conditions, or if there are defects that cause locally higher current. Normally there is protection that prevents such abuse in properly designed Li-ion battery packs, so there is typically little if any metallic Lithium in Li-ion cells, which is why FAA etc can recommend water as a method of fighting Li-ion battery fires, but not Li-metal battery fires. | |
| May 23, 2016 at 12:43 | comment | added | Russell McMahon♦ | @BillDubuque see added note | |
| May 23, 2016 at 12:43 | history | edited | Russell McMahon♦ | CC BY-SA 3.0 |
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| May 21, 2016 at 1:23 | comment | added | Bill Dubuque | If you replace 'LiIon cells mechanically flex the cell as metallic Lithium is "plated"' by 'LiIon cells mechanically flex the cell as Lithium ions are intercalated" then the answer will no longer be propagating said widespread confusion between primary (nonrechargeable) Lithium-metal cells and secondary (rechargeable) Li-ion cells. Then we can delete these comments. The distinction is very important (e.g. firefighting techniques for Lithium metal cells are much more difficult due to the presence of metallic Lithium). | |
| May 21, 2016 at 0:57 | history | edited | Russell McMahon♦ | CC BY-SA 3.0 |
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| May 21, 2016 at 0:53 | comment | added | Russell McMahon♦ | Information only: Bill's comment gets into areas that are more complex than needed for this discussion. While to some extent he is technically correct focusing on the aspects raised decreases value of the answer. | |
| Nov 23, 2015 at 23:18 | comment | added | Bill Dubuque | It seems you are confusing (primary) Lithium metal cells with (secondary) Li-ion. There is no Lithium metal in Li-ion cells, nor any "metallic Lithium plating in and out of the cell". Rather, there is intercalation of Lithium ions. See here for a basic overview. Note in particular the statement "This (Li-ion) type of battery is inherently safer because in contrast to the metallic state where Li is reduced in Li-metal batteries, in the Li-ion battery, lithium is always confined to the ionic state." | |
| Sep 1, 2012 at 22:00 | vote | accept | helloworld922 | ||
| Sep 1, 2012 at 19:45 | history | answered | Russell McMahon♦ | CC BY-SA 3.0 |