Lithium Refining Cost Calculator
Mining produces raw lithium-bearing material, but that material is not usable in batteries until it is chemically refined and purified into battery-grade lithium carbonate or lithium hydroxide -- and refining is where a meaningful share of lithium's finished cost actually gets added. This calculator estimates the finished cost of battery-grade lithium carbonate from three inputs: the quantity of battery-grade lithium carbonate needed (in metric tons), the raw feedstock cost expressed as lithium carbonate equivalent ($/tonne), and the refining/conversion cost ($/tonne). It reports the total feedstock cost, total refining cost, total finished battery-grade lithium cost, and the effective cost per tonne. It pairs naturally with our Battery Mineral Cost per kWh Calculator for how finished lithium carbonate flows into per-kWh cell cost, and our planned Critical Mineral Import Tariff Impact Calculator for the tariff burden layered on top of refining cost.
The quantity of finished battery-grade lithium carbonate (or the equivalent in lithium hydroxide) the calculation is sized to, in metric tons.
The cost of raw spodumene concentrate or brine feedstock, expressed as lithium carbonate equivalent, before conversion into finished battery-grade product.
Converting raw spodumene concentrate or brine into finished battery-grade lithium carbonate or lithium hydroxide typically adds several thousand dollars per tonne in processing cost, covering chemical processing, purification, and quality control to meet battery-grade specifications.
battery-grade lithium carbonate needed (metric tons) × raw feedstock cost ($/tonne as LCE)
battery-grade lithium carbonate needed (metric tons) × refining/conversion cost ($/tonne)
total feedstock cost ($) + total refining cost ($)
total finished battery-grade lithium cost ($) ÷ battery-grade lithium carbonate needed (metric tons)
Results update live as you type. For planning and field-check estimates — always verify against applicable standards and equipment ratings.
Refining is where a meaningful share of lithium's finished cost actually gets added -- raw feedstock and conversion processing combine to produce an effective finished cost around $20,000/tonne in this example, landing right in line with real 2026 Chinese spot prices for battery-grade lithium carbonate, which traded between roughly $21,000 and $25,500/tonne through the first half of the year. This refining step is also a genuine supply chain bottleneck: China controls a large majority of global lithium refining capacity regardless of where the raw ore or brine is actually mined, which is exactly why building refining capacity outside China has become a specific policy priority in recent energy and trade legislation.
How lithium refining cost is calculated
This calculator estimates the finished cost of battery-grade lithium carbonate from the quantity needed, the raw feedstock cost, and the refining/conversion cost. Four quantities tie the calculation together.
Total Feedstock Cost ($) = Battery-Grade Lithium Carbonate Needed (metric tons) × Raw Feedstock Cost ($/tonne as LCE). The raw feedstock cost is the price of raw spodumene concentrate or brine feedstock, expressed as lithium carbonate equivalent (LCE) -- the standard industry convention for normalizing different raw lithium sources to a common basis. Multiplying the quantity needed by the feedstock cost per tonne gives the total feedstock cost. At the defaults (100 metric tons and $15,000/tonne), that is 100 × $15,000 = $1,500,000.
Total Refining Cost ($) = Battery-Grade Lithium Carbonate Needed (metric tons) × Refining/Conversion Cost ($/tonne). Converting raw spodumene concentrate or brine into finished battery-grade lithium carbonate or lithium hydroxide adds processing cost covering chemical processing, purification, and quality control to meet battery-grade specifications; multiplying the quantity needed by the refining cost per tonne gives the total refining cost. At the defaults (100 metric tons and $5,000/tonne), that is 100 × $5,000 = $500,000.
Total Finished Battery-Grade Lithium Cost ($) = Total Feedstock Cost ($) + Total Refining Cost ($). Summing the feedstock and refining costs gives the total finished cost of the battery-grade lithium carbonate. At the defaults ($1,500,000 feedstock and $500,000 refining), that is $1,500,000 + $500,000 = $2,000,000.
Effective Cost per Tonne ($/tonne) = Total Finished Battery-Grade Lithium Cost ($) ÷ Battery-Grade Lithium Carbonate Needed (metric tons). Dividing the total finished cost by the quantity needed gives the effective finished cost per tonne -- the landed cost of battery-grade lithium carbonate including both raw feedstock and refining. At the defaults ($2,000,000 and 100 metric tons), that is $2,000,000 ÷ 100 = $20,000/tonne.
Two notes on the model. First, the feedstock and refining costs are single representative figures, which is appropriate for a planning-level estimate of finished lithium cost -- but actual feedstock costs vary by source (spodumene hard rock vs. brine), grade, and contract structure, and refining costs vary by target product (lithium carbonate vs. lithium hydroxide, with hydroxide generally somewhat more expensive), geography, and scale, so the editable fields let you substitute source- and project-specific figures. Second, this calculator reports the finished lithium cost only and does not include the tariff burden layered on top of refining cost for imported material (see the planned Critical Mineral Import Tariff Impact Calculator), the downstream per-kWh cell cost once finished lithium is built into a battery (see the Battery Mineral Cost per kWh Calculator), the effect of long-term supply contracts and hedging that mean real-world procurement rarely occurs at spot prices, or the capital cost of building refining capacity itself -- all of which a full supply chain evaluation would include. Data sources: Battery-grade lithium carbonate 2026 Chinese spot price range of roughly $21,000-25,500/tonne through the first half of the year from Fastmarkets, Benchmark Mineral Intelligence, and Chinese spot price reporting; spodumene concentrate and brine feedstock cost ranges expressed as LCE from Benchmark Mineral Intelligence and Fastmarkets market reporting; refining/conversion cost of several thousand dollars per tonne for converting raw feedstock into battery-grade lithium carbonate or hydroxide from Benchmark Mineral Intelligence and industry cost reporting; China's dominant share of global lithium refining capacity from IEA Critical Minerals Outlook and Benchmark Mineral Intelligence capacity tracking. Verification: with defaults (100 metric tons, $15,000/tonne feedstock, $5,000/tonne refining), Total Feedstock Cost = $1,500,000, Total Refining Cost = $500,000, Total Finished Battery-Grade Lithium Cost = $2,000,000, Effective Cost per Tonne = $20,000/tonne.