Lithium-ion battery price decline

What worked

• The chart itself is a simple line showing lithium-ion battery prices falling dramatically since 1991, which makes the 99% decline in three decades instantly readable.
• The post text leads with a concrete, surprising number, 20 million electric cars sold globally in 2025, and anchors it with a relatable price point of $10,000, turning an abstract cost curve into a real-world outcome.
• The account is an independent author in data journalism with high self-labelling and a visible source line, and the post landed in the top quarter for both source reach and quote rate, which helped it travel beyond the usual audience.

What to borrow

We could take our own long-run cost or adoption series and frame the latest point as a concrete, everyday possibility, such as a price or volume that would have seemed impossible two decades ago, while keeping the chart simple and clearly sourced.

Careful

Do not copy the exact 99% or 20 million figures unless our data supports them, and do not over-read the high views as proof that the chart design alone drove the spread, since the news hook and the account's independent-author reach likely did much of the work.