On the curve, week ending 2026-04-25
Sodium-ion battery manufacturing bottleneck cleared. CATL announced on 22 April that it has resolved the core manufacturing challenge for sodium-ion batteries, with mass production commencing in 2026. The company achieved a 50% increase in energy density through advances in ion-desolvation and anti-freeze electrolyte chemistry. At -30°C, the sodium-ion cell delivers three times the discharge power of conventional lithium iron phosphate cells; at -40°C, capacity retention exceeds 90%. Current cell costs are already 30-40% below equivalent lithium iron phosphate units, with potential for a further 20-30% reduction as scale increases. Why it matters: sodium avoids lithium’s supply bottleneck and geopolitical exposure, making grid-scale storage and budget EV segments more resilient.
Lithium supply enters confirmed structural deficit. Q1 2026 pricing reveals a market inflection: battery-grade lithium carbonate doubled to USD 26,278 per tonne, driven by tightening supply outpacing near-term demand weakness. Wood Mackenzie, Morgan Stanley, and Canaccord forecasters now converge on a “material market deficit” beginning in 2026, with supply tightness concentrated in the spodumene segment. Australian production curtailments and Chinese permit cancellations have created converter overcapacity upstream. Without significant new investment, supply deficits could persist through 2035. Why it matters: validates that battery-grade lithium will remain structurally scarce through the 2030s, supporting long-hold positions in lithium equities and feedstock assets.
Copper faces tariff-driven price floor and supply uncertainty. Goldman Sachs expects a 15% refined copper tariff announcement mid-2026 and implementation in 2027, which will set a floor under LME copper prices at USD 10,000-11,000 per tonne. Forecasters diverge sharply on 2026 supply balance: Goldman Sachs projects a 160,000-tonne surplus whilst the International Copper Study Group signals a 150,000-tonne deficit. Grid and power infrastructure spending, AI data-centre construction, and defence spending are cited as demand anchors. Why it matters: tariff policy now competes with supply dynamics in price formation; existing stockpiles create arbitrage opportunities for physical accumulation before 2027 implementation.
Federal right-to-repair legislation gains political momentum. The REPAIR Act (H.R. 1566/S. 1379) gained traction in April 2026 as a populist priority across political camps, with 89% of the NFIB endorsing federal legislation. Seven states have already passed comprehensive right-to-repair laws covering consumer electronics, farm equipment, wheelchairs, and automobiles. The 2026 legislative template explicitly clarifies prohibitions on software-based parts pairing and manufacturer-imposed repair restrictions. Why it matters: reduces planned obsolescence and extends product lifecycles, converting durable goods into lasting assets.
Starlink constellation reaches 10,000-satellite operational milestone. SpaceX launched its 1,000th Starlink satellite of 2026 on 14 April and continues at accelerated cadence, with 10,296 satellites in orbit and 10,280 operational as of late April. The constellation now provides global coverage with redundancy, supporting latency-sensitive applications and mesh network backhaul. Why it matters: a globally redundant constellation de-risks satellite comms sovereignty; Starlink and Iridium hardware become practical backup infrastructure.