Apa itu
NMC packs more energy into the same weight than the alternatives, which is why long-range vehicles and most Western-built cars use it. The trade is cost, and dependence on nickel and cobalt.
Daftar kebutuhan material
Skalakan →Kuantitas adalah per 75 kWh packkisaran indikatif
| Material | Rendah | Tinggi | Satuan | Dasar |
|---|---|---|---|---|
| Graphite kritis Roughly 1 kg of anode material per kWh. | 50.00 | 80.00 | kg | Anode active material |
| Nickel kritis NMC811 cathode is roughly 0.7 kg Ni per kWh. | 40.00 | 60.00 | kg | Contained nickel |
| Aluminium kritis | 20.00 | 35.00 | kg | Cathode foil, cell cans and pack casing |
| Copper kritis | 15.00 | 25.00 | kg | Foil and busbars, cell and pack only |
| Cobalt kritis Falls sharply as cathodes move from NMC622 to NMC811. | 5.00 | 9.00 | kg | Contained cobalt |
| Lithium kritis About 0.10 kg Li per kWh of cell capacity. | 6.00 | 9.00 | kg contained lithium | Contained metal, not carbonate |
| Manganese kritis | 5.00 | 9.00 | kg | Contained manganese |
Indicative range compiled from published technology studies and chemistry; verify against a manufacturer specification before use. Baris yang ditandai "trace" mengandung material dalam jumlah yang terlalu kecil untuk dinyatakan secara bermakna sebagai massa — kendala di sini adalah kemurnian atau jumlah pemasok, bukan tonase.
Alternatif-alternatifnya
Substitusi adalah kekuatan yang paling diremehkan dalam dunia material. Ketika sebuah logam menjadi mahal atau sulit secara politis, para insinyur merancang solusi alternatifnya — dan permintaan terhadap seluruh tambang bisa lenyap begitu saja.
LFP Lithium-Ion Battery
Iron and phosphate instead of nickel and cobalt: heavier, cheaper, safer and very long-lived.
Sodium-Ion Battery
A cell that uses sodium — from ordinary salt — instead of lithium, at the cost of energy density.
Vanadium Redox Flow Battery
A battery that stores its energy in two tanks of dissolved vanadium, so power and capacity scale separately.