BYD, Batteries, and the Architecture of Dependence
Dateline, Canberra, Austrlia
I have just arrived in Canberra for the October 1 seminar hosted by the Sir Richard Williams Foundation.
So no place better to start than by focusing on one of the themes in my latest book with Kenneth Maxwell on China’s informal empire.
BYD is not simply a car company that got good.
It is the clearest automotive expression yet of what I have called, with Kenneth Maxwell, the “Architecture of Dependency”: a strategy that pursues vertical integration of an entire value chain — from mineral extraction through midstream processing to the logistics that move finished goods to market — rather than conventional market access.
In The Australian, Brazilian, and Chinese Dynamic, we traced this architecture through lithium refining, rare-earth processing, and port infrastructure such as Chancay.
The global automobile is now a fourth front in the same campaign.
BYD’s pricing is not merely competitive; it is engineered to convert every vehicle sold abroad into a node in a Chinese-controlled battery and software supply chain. A car buyer in São Paulo, Bangkok, or Budapest who chooses a BYD is not just choosing a product.
They are choosing a dependency relationship whose terms were set upstream, in cell chemistry and mineral processing capacity that China already dominates.
Toyota’s solid-state battery program in progress for launch projected within the next five years is the most credible industrial counter to this dynamic now on the table, not because it beats BYD on price, but because it proposes an entirely different chemistry, supply chain, and manufacturing geography.
This article examines both halves of that contest: how BYD builds dependence, and Toyota’s bet to break it.
BYD’s Global Expansion Strategy: Asymmetrical Market Penetration
BYD’s rise has been startling in its speed. In April 2026 alone the company exported 135,098 vehicles worldwide, every one fully electric or plug-in hybrid, a figure that by some analyst estimates exceeded Tesla’s global monthly deliveries for the same month. SNE Research put BYD’s non-China deliveries at roughly 497,000 units in the first half of 2026, up 81 percent year on year, placing it third worldwide behind Volkswagen and Tesla in overseas volume. BYD’s own target is 1.6 million overseas sales in 2026, backed by new or expanding plants in Hungary, Brazil, Thailand, Indonesia, Pakistan, and Turkey, with Spain under consideration.
The strategy behind these numbers is not a frontal assault on the most fortified Western markets.
It is what one industry analysis calls “asymmetrical market penetration”: BYD largely avoided the politically hardened U.S. market where tariffs and political resistance keep it effectively locked out and instead targeted the Global South and secondary Western markets where legacy automakers had grown complacent. Thailand became a regional hub and template for ASEAN expansion; Brazil, Hungary, and Turkey became manufacturing footholds that double as tariff workarounds and in June 2026 Canada cut its tariff on Chinese EVs from 100 percent to 6.1 percent as part of a broader energy and climate partnership with Beijing, opening a new North American corridor.
What makes this expansion durable rather than opportunistic is BYD’s unparalleled vertical integration.
Unlike Western automakers, which depend heavily on third-party suppliers for battery cells, semiconductors, and software, BYD manufactures nearly everything in-house, an inheritance from its origins as a battery maker before it built a single car.
That integration is precisely why the company can build factories concurrently across continents while still undercutting incumbents on price: it is not buying components at a margin, it is capturing the margin at every stage of the chain. Chinese EV factories capable of producing more than 200,000 vehicles a year have sprung up in Indonesia, Thailand, Pakistan, Turkey, Hungary, and Brazil, offering vehicles that are, on average, around 20 percent cheaper than their Western counterparts even before subsidies are considered.
Domestically, this expansion is not evidence of strength alone. BYD’s first-quarter 2026 net profit fell 55 percent, its worst showing in three years, as a brutal domestic price war and thinning subsidies compressed sector-wide margins to an average of 3.2 percent. Exports abroad, where BYD can command significantly higher average selling prices, have become less a growth option than a financial necessity which only sharpens the incentive to keep undercutting Western rivals in every market it can reach.
The Battery Dependency Mechanism
BYD began life as a battery manufacturer, and that lineage is the key to understanding its strategy. Its battery subsidiary, FinDreams, is one of the largest EV battery producers on earth, second only to CATL, and together the two Chinese firms anchor a domestic battery-cell industry that supplies the overwhelming majority of the world’s electric and plug-in-hybrid vehicles.
This is where the automotive story connects directly to the argument Kenneth Maxwell and I made in The Australian, Brazilian, and Chinese Dynamic. China today controls 57 percent of global lithium refining and 85 percent of global rare-earth processing, even though Australia alone produces 45 percent of the world’s raw lithium. A nation can extract the resource from its own soil and remain, in our phrase, a “feeder economy” so long as it lacks the midstream processing capacity to break the refining monopoly.
The battery pack under a BYD Seal or a Dolphin is that same architecture, miniaturized and rolling on four wheels: raw lithium, cobalt, and rare-earth inputs processed almost entirely within Chinese-controlled facilities, assembled into cells by Chinese battery makers, and sold into foreign markets as a finished vehicle whose entire value chain, mine to midstream to cell to car, never leaves Beijing’s sphere of control.
The difference between the port infrastructure we examined at Chancay and the battery under a BYD hood is one of visibility, not of kind.
A container port is a fixed, physical chokepoint that a government can study, debate, and in principle refuse, as Australia did with Huawei and 5G in 2018. A battery pack is a chokepoint embedded inside a consumer product that a private buyer purchases one car at a time, with no equivalent moment of sovereign decision.
Every BYD sold in Bangkok, Budapest, or São Paulo extends this architecture one vehicle further, locking in years of downstream dependence on Chinese cells, Chinese charging and diagnostic software, and Chinese-controlled mineral processing for eventual battery replacement, all without a single formal government-to-government agreement being signed. This is dependency built at the retail counter rather than the negotiating table, which is precisely what makes it durable: there is no single decision point for a democratic government to reverse.
Three Markets, One Pattern
Europe. The European Union imposed tariffs on Chinese battery-electric imports in October 2024, and BYD’s response illustrates the flexibility of the model: rather than retreat, it is building local production capacity in Hungary while sourcing non-core components from regional suppliers, converting a tariff barrier into a localization strategy that still leaves the battery cell and the value it represents Chinese-controlled.
Brazil. Brazil has become one of BYD’s key manufacturing footholds in Latin America, converting a repurposed Ford plant into EV production. This mirrors the pattern Maxwell and I described in Brazil’s broader China relationship: deep economic accommodation that captures short-term industrial investment and jobs while ceding the higher-value processing and design steps to the foreign partner.
Southeast Asia. Thailand has emerged as BYD’s regional hub, a template now being replicated across Indonesia and other ASEAN markets: competitive pricing combined with rapid localization, embedding BYD in national industrial policy rather than treating it as a mere import.
Across all three regions, the common thread is that host countries gain assembly jobs and headline investment figures while the architecture of the value chain — mineral processing, cell chemistry, battery management software — remains anchored in China. This is Territorial Reprimarization applied to advanced manufacturing rather than raw commodities: the host nation is confined to a downstream role even as it hosts the factory.
Toyota’s Solid-State Bet: A Counter to the Architecture, Not Just the Car
Toyota’s solid-state battery program is worth reading as a strategic move against the dependency architecture itself, not merely a product play against BYD. Toyota holds more solid-state battery patents than any other company and has worked the technology since 2008. Its long-standing technical obstacle, a sulfide electrolyte that cracked under the mechanical stress of repeated charge cycles, limiting early prototypes to a few hundred cycles, is now reported solved, with a proprietary fix said to enable thousands of cycles without fracture.
The headline numbers are substantial: a second-generation pack targeting roughly 745 miles of range and a 10-minute 10–80 percent charge, roughly double the energy density of today’s lithium-ion cells. Toyota is targeting first-generation solid-state vehicles, flagship-first through Lexus, in 2027–2028, with mainstream availability unlikely before the late 2020s.
Critically, Toyota is not building this alone or inside China’s supply chain: its partner Idemitsu Kosan, a Japanese oil refiner, broke ground in early 2026 on a large-scale pilot plant to manufacture the solid electrolytes Toyota’s packs require, with several hundred tons of annual capacity expected once complete in 2027.
What makes this a genuine counter-blow rather than an incremental upgrade is the supply chain it builds around itself.
A sulfide solid-state architecture, produced with a Japanese oil-and-chemicals partner rather than sourced from CATL or FinDreams, does not merely compete with BYD’s batteries on range and charge time. It proposes an alternative processing geography entirely outside the Architecture of Dependency. Even CATL, the world’s largest EV battery maker, has been publicly skeptical that solid-state batteries could reach commercial price viability before 2030; Toyota’s 2027 target, if it holds, would be a direct challenge to that timeline and to the assumption that Chinese firms will set the pace of the next battery generation.
None of this closes the dependency gap that BYD has already built into hundreds of thousands of vehicles now on roads from Bangkok to Budapest. What it does is put a credible, non-Chinese alternative chemistry and supply chain on a fixed timeline for the first time which changes the strategic calculation for every automaker and government now weighing whether to deepen or diversify away from Chinese battery dependence.
Strategic Implications for Middle Powers and Allies
Australia’s 2018 decision to ban Huawei and ZTE from its 5G rollout established a principle worth restating here: national security interests can override economic convenience, and technology is never neutral. That decision worked because telecommunications hardware is a fixed, government-licensed piece of national infrastructure, a single, visible decision point. Automotive batteries offer no equivalent chokepoint. No regulator approves each individual car sale, and the dependency accumulates one consumer purchase at a time, invisibly, until a critical mass of a national vehicle fleet is running on Chinese-controlled cell chemistry, software, and eventual replacement-battery supply.
This asymmetry argues for a different kind of policy response than the telecoms case allowed.
Three moves follow directly from the analysis above:
- Treat battery chemistry diversification as a sovereignty issue, not merely an industrial-policy one. Government support for alternative chemistries, solid-state, sodium-ion, or others not anchored in Chinese-controlled lithium and rare-earth processing, should be evaluated the way the Huawei decision evaluated telecoms hardware: as infrastructure risk, not as a subsidy contest.
- Invest in midstream processing capacity, not just mining. As with lithium and rare earths in the Australian case, the vulnerability is not extraction but the missing midstream step. A nation that mines lithium but cannot refine it, or that assembles EVs but cannot make cells, remains a feeder economy regardless of how many factories it hosts.
- Use local-content and right-to-repair rules as leverage points. Since there is no single sovereign decision moment analogous to a 5G license, governments have more room to act through diffuse regulatory levers, battery second-life and recycling mandates, cell provenance disclosure, and local-content thresholds tied to processing rather than final assembly, that make the dependency visible and negotiable rather than silent and structural.
Toyota’s solid-state program does not solve this problem on its own, but it demonstrates that the technical premise of Chinese battery dominance — that no credible alternative chemistry and supply chain exists on a near-term timeline — is not fixed.
That is the opening middle powers and allied industrial policy should be working to widen.
Conclusion
BYD’s global expansion is the automotive chapter of the same story told through lithium refining in Australia, port infrastructure in Peru, and rare-earth processing worldwide: an informal empire built not on territorial control but on ownership of the value chain, one purchase and one factory at a time.
The scale is striking,over a m illion overseas sales targeted for 2026, factories rising on four continents, and a vertically integrated cost structure Western automakers cannot easily match.
But the deeper significance is structural. Every BYD sold abroad without a corresponding non-Chinese battery alternative on the market extends a dependency that has no single sovereign decision point to reverse.
Toyota’s solid-state battery is a bet that chemistry and supply-chain geography can be re-architected before that dependency becomes irreversible. Whether it arrives on schedule matters less than what it represents: proof that the terms of the battery competition are not yet permanently set.
For the middle powers navigating Global China — the very question Kenneth Maxwell and I posed for Australia and Brazil — the automotive sector confirms the pattern and raises the stakes: the architecture of dependency now rides on four wheels, and it is already on the road.