Was tatsächlich transportiert wird
Lithium in a salar is dissolved in brine under the salt crust. It is pumped into ponds and left to evaporate for twelve to twenty-four months until it is concentrated enough to be worth processing. Almost none of the value is added in Chile; the concentrate leaves as a chemical and comes back, eventually, as a car.
- Das Material
- Lithium
- Die Varietät
- Salar brine, roughly 1,500–2,000 mg of lithium per litre
- Wo es beginnt
- Chile — Salar de Atacama, 2,300 m up in the driest desert on Earth
Schritt für Schritt und Grenze für Grenze
Chile · Salar de Atacama gehalten von SQM and Albemarle, under CORFO concessions (Bergmann)
Pumping the ore to the surface
Brine is pumped from wells 30–200 m below the salt crust. No blasting, no haul trucks, no waste rock — the ore arrives as a liquid.
Warum hier: Closed basin, high altitude, volcanic highlands feeding it, and almost no rainfall. Very few places on Earth combine all four.
Chile · Evaporation ponds gehalten von SQM and Albemarle (Bergmann)
Eighteen months of sunshine
The brine moves through a cascade of ponds. Sodium, potassium and magnesium salts crystallise out in sequence and are harvested; the lithium stays in solution and concentrates.
Was mit dem Rest geschah: Around 95% of the water evaporates into the desert air. Potash is harvested as a genuine co-product, not a waste.
Warum hier: This step is free solar energy and eighteen months of patience. It cannot be moved somewhere with less sun and it cannot be hurried.
Chile · Salar del Carmen, near Antofagasta gehalten von SQM / Albemarle (Chemisch)
Into a chemical
The concentrate is trucked to the coast, purified of boron and magnesium, and reacted with soda ash to precipitate lithium carbonate.
Was mit dem Rest geschah: This is the last step performed in Chile. Everything downstream — and most of the value — happens elsewhere.
Warum hier: Near the port and the power, and required by the concession terms.
China · To Chinese and Korean cathode plants gehalten von Traders and cathode makers (Händler)
Across the Pacific in a container
Lithium carbonate ships as an ordinary bagged chemical in a standard container. At this point custody leaves the mining industry entirely.
Warum hier: Cathode manufacture is where the buyers are. The chemical goes to the factory; the factory does not come to the salar.
China · Cathode plant gehalten von Cathode manufacturer (Hersteller)
Becoming a cathode
The carbonate is combined with an iron-phosphate or nickel-manganese-cobalt precursor and calcined into cathode active material — a black powder.
Was mit dem Rest geschah: Carbonate is only about 19% lithium by weight. The rest of the mass was always carbon and oxygen.
Warum hier: Calcination to a tight particle-size specification is the hardest step to qualify, and the qualified plants are concentrated in a few places.
China · Cell plant and vehicle assembly gehalten von Battery and vehicle manufacturers (Hersteller)
Into a cell, then a pack, then a car
Cathode powder is coated onto aluminium foil, paired with a graphite anode on copper foil, wound or stacked, filled with electrolyte and sealed. The cells become modules, the modules become a pack.
Warum hier: Cells are heavy and awkward to ship, so cell plants cluster near vehicle assembly.
Germany · Wherever it is sold gehalten von The driver (Endabnehmer)
A car, for maybe fifteen years
Roughly 8 kg of contained lithium, from a million litres of desert brine, now sits under a car floor. At end of life it can be recovered — recycling returns lithium at high rates once the collection system exists.
Warum hier: The car is sold where the demand is. The lithium has now crossed three continents.
Dies ist ein ausgearbeitetes Beispiel. Es verfolgt eine angegebene Ausgangsmenge anhand veröffentlichter typischer Ausbeuten und Ausbringungsgrade, sodass die Verhältnisse nachprüfbar sind; es handelt sich nicht um den Nachweis einer bestimmten Lieferung. Routenfakten — welche Länder, welche Prozesse und warum das Material nicht einfach anderswo verarbeitet werden kann — sind aus öffentlichen Berichten zusammengestellt.