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Can a Li-ion battery protection IC function as a protection for a Li-ion capacitor?

Lithium-ion Battery Protection ICsHow to use

Li-ion capacitors include a cathode of electric double layer capacitors and an anode of Li-ion batteries. They feature longer operation, higher power output, and higher safety than Li-ion batteries, although the capacity is smaller. Besides, compared with electric double layer capacitors, Li-ion capacitors have larger capacity and higher output voltage. However, a Li-ion capacitor needs the same protection as Li-ion batteries, for it also overcharges or overdischarges.

You can use Li-ion battery protection ICs for Li-ion capacitors as well, for the voltage level to protect is the same as Li-ion batteries.

If you still have questions.