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Lithium iron phosphate (LiFePO₄)
| Entity type | Chemistry |
|---|---|
| Nominal voltage | 3.2 V |
| Operating voltage window | 2.5–3.65 V |
| Energy density | 90–160 Wh/kg (cell level) |
| Cycle life | 2,000–5,000+ cycles (cycles to 80% capacity, ~80% DOD, 25 °C) |
| Temperature window | discharge −20 to +60 °C · charge 0 to +45 °C |
| Thermal stability | Highest of the group (most abuse-tolerant) |
| Cobalt content | None |
| Typical cell format | Prismatic / cylindrical |
All figures are typical ranges, not a substitute for a specific cell datasheet — they vary by manufacturer, cell format and C-rate.
What the data means: LFP’s position in the chemistry family is set by two numbers working against each other — energy density (Wh/kg) and cycle life. LFP sits at roughly 90–160 Wh/kg and 2,000–5,000+ cycles, which places it at a specific point on the energy-versus-longevity trade-off.
Why it matters: A datasheet number only means something with its basis — cell-level energy density is not pack-level, and cycle life is only meaningful at a stated depth of discharge and temperature. Read LFP against those conditions, never as a bare figure.
Engineering interpretation, not a purchasing guarantee.
Evidence card — how this chemistry’s data was established
Basis: typical ranges cross-verified from cell-manufacturer datasheets and battery engineering references.
Typical ranges; vary by manufacturer, cell format and C-rate. Energy density is cell-level — pack level is lower.
Last verified: 2026-09-18
Values are typical ranges, not a substitute for a specific cell datasheet. Return to World Battery Hub.