Battery TechnologyGlobal
Battery Chemistry Explained: Lead-Acid, Lithium & Beyond
From lead-acid to LFP to emerging solid-state — a plain-language tour of battery chemistries and why home storage settled on lithium iron phosphate.
WaterFuelAndSolarEnergy.com Editorial Team Updated December 2024 7 min read
Chemistry determines how much a battery can cycle, how safely it stores energy, and how much it costs. Home storage has effectively settled on LFP, but it helps to know the landscape.
Battery chemistries at a glance
| Chemistry | Cycle life | Use today |
|---|---|---|
| Lead-acid | 300–1,000 | Off-grid / budget, fading |
| LFP (LiFePO4) | 6,000–10,000 | Home storage standard |
| NMC | 1,000–2,000 | EVs mostly |
| Solid-state / emerging | — | R&D, not yet residential |
Why LFP dominates home storage
LFP’s long cycle life and thermal stability fit daily home cycling perfectly, and its lower cost and no-cobalt supply chain made it the winning formula. Most reputable home batteries sold today are LFP.