Easily available info from Google.
The HYN 13400 battery is a Lithium battery.
The biggest difference between Lithium batteries and Lithium-ion batteries is that Lithium batteries feature a single cell construction, meaning that they are single-use and cannot be recharged once empty. Lithium batteries can provide power from a single charge, even if it’s the only charge they’ll ever have. Unfortunately, there is no safe or effective way to recharge Lithium batteries.
Save yourself time, effort, and above all the risk of fire or personal injury, and dispose of that battery properly.