Primary and secondary batteries are simply batteries that can be used one time or more than one time, respectively; primary meaning “once” and secondary meaning “twice.” A rechargeable battery (secondary) can be used more than once and a non-rechargeable battery (primary) can only be used once. It is really the chemistry type of the cell(s) that make up the battery that determine which type of battery it is.
In regards to lithium chemistries, all lithium metal cells and batteries are non-rechargeable (primary), and all lithium ion cells and batteries are rechargeable (secondary).
