Overview
Battery-grade lithium carbonate is the highest-volume lithium salt used in lithium-ion cathodes, mainly for LFP, LMO and mid-to-low-nickel NCM synthesis. Sodium, iron, calcium, sulfate, chloride, moisture and magnetic impurities are tightly limited because they directly affect cathode capacity, cycling and safety.
- Li₂CO₃ ≥ 99.5%
- Na ≤ 0.025%, Fe ≤ 0.001%
- Magnetic impurities ≤ 0.3 ppm, adjustable D50
Technical data
| Item | Battery grade | Industrial grade |
|---|---|---|
| Li₂CO₃ / % min | 99.5 | 99.2 |
| Na / % max | 0.025 | 0.08 |
| K / % max | 0.001 | 0.005 |
| Ca / % max | 0.005 | 0.01 |
| Mg / % max | 0.005 | 0.01 |
| Fe / % max | 0.001 | 0.002 |
| Cu / % max | 0.0003 | 0.001 |
| Zn / % max | 0.0003 | 0.001 |
| Pb / % max | 0.0003 | 0.001 |
| Si / % max | 0.003 | 0.01 |
| Al / % max | 0.001 | 0.005 |
| SO₄²⁻ / % max | 0.08 | 0.20 |
| Cl⁻ / % max | 0.01 | 0.05 |
| Hydrochloric acid insolubles / % max | 0.005 | 0.015 |
| Moisture / % max | 0.25 | 0.40 |
| Magnetic impurities / ppm max | 0.3 | — |
| D50 / µm | 5–15 | 10–30 |
Referenced to GB/T 11075-2013 and YS/T 582-2013; the batch COA governs.
Reference standards
Standards and values are typical references. Supply is governed by the agreed technical protocol and the batch COA.
Main applications
Packaging and storage
Packaging
25 kg composite woven bags with PE liner, 500 kg / 1000 kg bulk bags; nitrogen-flushed packing available.
Storage
Store sealed and dry; avoid moisture pickup and reaction with carbon dioxide to form lithium bicarbonate.
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