Are you talking about 18650 lithium ion (NMC, NCA or LCO) batteries?
Almost all the batteries found in phones are lithium polymer with LCO (lithium-cobalt-oxide) chemistry that have a max voltage of 3.8 or 3.7, but the same principal that you describe applies that limiting the charging capacity to 80% or 90% (i.e., limiting the max voltage) will greatly extend the number of cycles before degradation in capacity.
3 Likes