In 2025, BYD sold 4.6 million new energy vehicles and crossed 800 billion yuan in revenue, roughly $110 billion at recent exchange rates. The newer development is just as important for CurrentCells readers: Benchmark Mineral Intelligence data now puts BYD ahead of Tesla as the world's largest battery energy storage system integrator, with more than 60 GWh shipped in 2025 and 13% global share. Few battery companies have moved faster from cell maker to vertically integrated mobility and storage giant. BYD (Build Your Dreams) was founded in February 1995 by Wang Chuanfu in Shenzhen, China, as a rechargeable battery manufacturer. It spent nearly a decade building battery expertise before entering the automotive sector in 2003. That sequence, batteries first, cars second, is not incidental. It is the structural advantage that separates BYD from every other EV competitor in the world. AI-generated image The BYD Blade Battery uses ultra-thin LFP cells arranged structurally within the pack, eliminating the module layer and dramatically improving energy density and thermal safety. Credit: AI visualization From Shenzhen Battery Shop to Global Energy Giant Wang Chuanfu started BYD with around 20 employees and 2.5 million yuan in borrowed capital. The company's first product was a rechargeable battery for mobile phones, at a time when the global market was dominated by Japanese manufacturers like Sanyo and Sony. BYD cracked that market not through breakthrough chemistry but through manufacturing discipline: it replaced expensive automated production lines with carefully managed manual assembly, cutting costs sharply while maintaining competitive quality. By 2000, BYD was one of the world's largest rechargeable battery manufacturers. The pivot to automobiles came in 2003 with the acquisition of Xi'an Qinchuan Automobile, a struggling state-owned automaker. The acquisition was deeply controversial internally. BYD's investors protested, Warren Buffett's partner Charlie Munger called it a questionable bet, and industry analysts dismissed the idea that a battery company could build competitive cars. Wang Chuanfu disagreed, arguing that a car is fundamentally an assembly of electrical components and that battery expertise was the core technology advantage the coming transition to electrification would reward. 1995 Year Founded $110B Approx. 2025 Revenue 4.6M NEVs Sold in 2025 60+GWh 2025 BESS Shipments Warren Buffett's Berkshire Hathaway acquired a stake in BYD in 2008, purchasing roughly 10% of the company for about $230 million. The investment, made against the advice of many Berkshire partners, proved transformative both for Berkshire's returns and for BYD's credibility with international investors and media. Berkshire has since sold down its position substantially as BYD's valuation climbed, but the original investment returned multiples of its entry price and validated Wang Chuanfu's long-term strategy. The Blade Battery: BYD's Core Technical Advantage In 2020, BYD introduced the Blade Battery, a lithium iron phosphate (LFP) cell design that represents the company's most significant contribution to battery technology in the past decade. Traditional EV battery packs use a three-layer architecture: individual cells are grouped into modules, modules are arranged into packs, and packs are installed into the vehicle. The Blade Battery eliminates the module layer entirely, inserting thin, blade-shaped LFP cells directly into the structural pack. The engineering benefits are substantial. Cell-to-pack architecture increases volumetric energy density by roughly 50% compared to conventional LFP pack designs. The blade geometry improves thermal dissipation, dramatically reducing the risk of thermal runaway under abuse conditions. BYD's nail penetration test, in which a steel nail is driven through a Blade Battery cell at full charge, became a widely circulated demonstration: the cell generates heat but does not ignite, while conventional NMC batteries in the same test typically burst into flame. BYD's global retail expansion now spans over 70 countries, with showrooms designed to emphasize the breadth of its vehicle lineup from compact passenger cars to commercial trucks. Credit: AI visualization The LFP chemistry choice is also strategically significant. LFP batteries use iron and phosphate instead of the cobalt and nickel required for NMC and NCA chemistries. Cobalt supply chains run through the Democratic Republic of Congo and are subject to significant ethical, political, and supply security concerns. By building its vehicle lineup around LFP chemistry, BYD sidestepped cobalt dependency entirely, giving it a supply chain resilience advantage that competitors relying on NMC chemistry have been slower to replicate. Blade Battery vs. Conventional LFP Pack • Architecture: Cell-to-pack (no modules) vs. cell-module-pack three-layer design. • Energy density: ~50% higher volumetric density than conventional LFP. • Thermal safety: No thermal runaway in nail penetration test. Surface temperature peaks at 60°C vs. 500°C+ for NMC. • Manufacturing cost: Fewer components, simpler assembly. BYD estimates 30% lower pack cost at scale. • Cycle life: LFP chemistry generally supports 3,000+ charge cycles vs. 1,500-2,000 for NMC. The Global Expansion Play BYD's 2025 international sales surge represents the company's most aggressive external growth push. Overseas markets became a primary growth vector as domestic Chinese EV competition intensified and price wars compressed margins at home. Net profit fell 19% year-over-year in 2025 despite the revenue milestone, a direct consequence of the brutal domestic pricing environment where CATL, NIO, Li Auto, and dozens of smaller EV makers compete for market share by cutting prices. The UK became one of BYD's most significant international markets in 2025, with the Atto 3, Seal, and Dolphin models finding strong consumer acceptance. Southeast Asia, particularly Thailand and Indonesia, also emerged as major export markets. BYD's decision to build local assembly plants in these markets, rather than relying purely on exports from China, reduces tariff exposure and builds political goodwill with host governments who want EV manufacturing jobs. The European expansion has been more complicated. The European Union imposed provisional tariffs on Chinese EV imports in 2024, citing state subsidies, with BYD facing a 17.4% additional tariff on top of the standard 10% import duty. BYD responded by announcing a manufacturing facility in Hungary, which will allow it to produce vehicles inside the EU and avoid the tariff. The Hungary plant is expected to begin production in 2025-2026, substantially improving BYD's competitive position in Europe's premium-volume markets. BYD's energy storage division supplies grid-scale battery systems to utilities worldwide, using the same LFP cell chemistry as its EV products. Credit: AI visualization Position in the Battery and EV Market BYD occupies an unusual position in the global battery industry: it is both a battery manufacturer supplying third parties and an end consumer of its own batteries in its vehicles. This creates a natural tension with CATL, which also sells batteries to BYD's EV competitors. CATL holds 39.2% of the global EV battery market compared to BYD's 16.4%, but BYD does not need to maximize external battery sales the way CATL does. BYD's primary metric is total vehicle margin, and vertical integration from cell production through vehicle assembly is its structural answer to cost competitiveness. Company 2025 Battery Market Share Primary Chemistry Key Customers CATL 39.2% NMC + LFP Tesla, VW, BMW, BYD BYD 16.4% LFP (Blade) Captive (own vehicles) + select OEMs LGES ~12% NMC GM, Hyundai, Tesla Panasonic ~7% NCA Tesla (primary) Samsung SDI ~5% NMC BMW, Stellantis Beyond passenger vehicles, BYD's energy storage division supplies grid-scale battery systems to utilities, using the same LFP chemistry developed