Morgan Stanley says salt is the new oil. Here's why and how to play it

Morgan Stanley sees sodium-ion batteries rising to 20% of global battery deployment share by 2030 and 37% by 2035, with annual market size expanding to 830 GWh by 2030 and 2.4 TWh by 2035. The bank also projects about $800 billion in new investment by 2035, highlighting lower costs than lithium iron phosphate and better cold-weather performance. General Motors was flagged as an early U.S. winner through its partnership with Peak Energy, with grid-scale deployment expected after 2028.

Analysis

The market is underestimating how quickly sodium-ion can move from an engineering curiosity to a procurement standard in low-cost stationary storage. The key second-order effect is not just substitution away from lithium, but a reshuffling of the battery value chain: salt- and soda-ash-linked inputs become strategically more important while lithium carbonate pricing power becomes less reflexive in the long-duration storage segment. That matters because grid storage is the first arena where low energy density is acceptable and where supply-chain localization has outsized policy value.

The real winner set is likely broader than the battery OEMs. Companies with access to domestic manufacturing footprints, utility relationships, and defense-qualified supply chains can monetize sodium-ion as a “sovereignty premium,” especially if trade restrictions or localization incentives widen. GM’s optionality is meaningful because it can warehouse the technology as a platform capability rather than a near-term P&L driver; that creates asymmetric upside if sodium-ion becomes a design win in stationary, fleet, or military-adjacent applications over the next 24–48 months.

The main risk is timing. Commercial enthusiasm can outrun bankable deployments, and sodium-ion could remain pilot-heavy if cycle life, pack-level economics, or bankability lag headline cost advantages. A reversal would likely come from lithium prices compressing again, or from one high-profile field failure in grid applications that resets utility procurement standards for 12–18 months. Near term, the trade is less about immediate earnings and more about valuation rerating around strategic relevance.

Consensus is probably too focused on lithium replacement and not focused enough on domestic industrial policy. If sodium-ion supports onshoring of energy storage assembly, the margin pool may migrate toward systems integration, licensing, and manufacturing services rather than cell makers alone. That makes the most attractive exposure likely to be companies with operating leverage to volume adoption but limited downside if commercialization slips by a year.

Key Decisions for Investors

• Start a tactical long GM position on weakness, with a 6–12 month horizon; the embedded option on sodium-ion is underappreciated, and downside is cushioned by existing auto/EV operations. Use a 10–15% stop or hedge with a short-dated call overwrite if implied volatility expands.
• Pair long GM vs short a basket of lithium-exposed battery names over 3–6 months; if sodium-ion gains share in stationary storage first, the multiple expansion should accrue to companies with domestic manufacturing optionality rather than pure lithium beta.
• Initiate a small long in sodium/soda-ash-related commodity exposure where available, sized as a theme hedge over 12–24 months; the risk/reward is attractive because the market is not yet pricing a structural demand call, but position sizing should remain modest until deployment data improves.
• Avoid chasing late-stage lithium miners as a pure secular hedge; use any strength to fade names whose valuation still assumes stationary storage growth is lithium-exclusive. The trade works best if sodium-ion remains a low-end storage substitute rather than a full EV replacement.
• If options liquidity permits, buy 12–18 month upside calls on GM financed with out-of-the-money puts or call spreads; this captures the strategic re-rating while limiting damage if sodium-ion commercialization slips beyond 2027.