Most energy companies are judged on revenue and margin. A pre-revenue deep-tech company is judged on something else entirely: how much cash it has, and how fast its research is burning through it. Until the product ships, the science is the business, and the filings read like a countdown clock rather than a profit-and-loss story.

QuantumScape, which is developing solid-state lithium-metal batteries, is a textbook case. Its FY2025 10-K reports research and development expense of roughly $375.6 million for the year, up from about $348 million in 2023. The Q1 2026 10-Q shows about $84.6 million of R&D in that single quarter. That is the cost of trying to turn a laboratory breakthrough into a manufacturable cell: hundreds of millions of dollars a year, before a dollar of product revenue.

Against that burn, the relevant question is runway, the cash available to keep going. QuantumScape's disclosed cash and equivalents were about $230.5 million at the end of 2025, then roughly $145.1 million at March 31, 2026, per the same filings. Read those two instants together with the quarterly R&D figure and you can see, in the company's own numbers, why such firms raise capital repeatedly: the research line consumes cash faster than any near-term product can replace it.

This is the structural reality of frontier battery chemistry. A solid-state cell promises higher energy density and better safety than today's lithium-ion, but getting there means solving manufacturing problems, like producing a thin, defect-free solid electrolyte at scale, that have humbled the field for a decade. Each year of that effort is a fixed, large research bill the company must fund from the balance sheet, not from sales.

So when you evaluate a pre-revenue battery company, read the cash line and the R&D line first, and the technology second. These figures were assembled from XBRL data via EdgarBeast, the SEC filing data API and evidence index, with the primary records being QuantumScape's FY2025 10-K and Q1 2026 10-Q on sec.gov. The chemistry is the dream; the cash is the deadline.