China's Battery Giants Face a Carmaker Pushback: The 'De-Ning' Shift

For a decade, one company sat at the center of China’s electric car boom. Contemporary Amperex Technology Co. Limited, better known as CATL, supplies batteries to Tesla, BMW, Volkswagen and virtually every major Chinese automaker. Its nickname inside the industry is simply “Ning” — short for the Ningde-based firm — and for years, winning a supply contract with it was treated as a survival requirement.

That era is showing cracks. In Chinese industry circles, people now talk about “de-Ning” — a deliberate strategy by carmakers to reduce dependence on a single battery supplier. The logic is simple: batteries account for 30 to 40 percent of an electric vehicle’s cost, more than an engine ever did in a gasoline car. Yet unlike engines, which automakers developed in-house for a century, batteries arrived from outside the traditional auto industry. Most car companies bought them rather than built them, leaving the core technology and a large share of the profit upstream.

Now the balance is tilting. Several leading Chinese automakers have begun producing their own battery packs and cells, either alone or through joint ventures. Others are splitting orders across multiple suppliers, giving business to smaller players that were once afterthoughts. The goal is not merely cost. Control over battery chemistry, pack design and software lets a carmaker tune range, charging speed and safety without waiting for a supplier’s roadmap.

Vertical integration is not easy. Building batteries at scale demands enormous capital, deep materials expertise and years of process know-how. CATL’s advantage comes from volume, research depth and relationships with mines and refiners that are hard to replicate quickly. Analysts broadly expect the company to remain the dominant player for years, even as its market share slips from the extraordinary highs of the early 2020s.

What is changing is the structure of the relationship. Automakers increasingly want to be the ones defining the specification, with suppliers competing to meet it — the opposite of the old arrangement, where the battery maker’s standard product shaped what cars could do. Some Chinese firms now advertise their own battery brands to consumers, the way European carmakers once marketed engine technology.

This has implications far beyond China. Chinese battery and car companies together supply a growing share of the global electric vehicle market, and their sourcing decisions ripple through lithium, nickel and graphite supply chains worldwide. If more automakers internalize battery production, the bargaining power of the largest cell makers could decline everywhere, not just at home.

For consumers, the near-term effect is likely more choice and faster improvement. Competition tends to push down prices and accelerate innovation in areas like fast charging and cold-weather performance. The risk is duplication: if every carmaker builds its own battery line, capital that might have funded breakthroughs gets spent on capacity that already exists.

China’s electric vehicle market is now the world’s largest and most competitive, with dozens of brands fighting for share. In that environment, no supplier — however dominant — can assume its position is permanent. The de-Ning trend is less a rejection of one company than a sign of an industry growing up, deciding it wants to own the part of the car that matters most.