In a diagram: The US is a pacesetter in battery know-how, in line with a research earlier than Tesla's Battery Day

A rechargeable lithium-ion battery for the Volkswagen ID.3 electric car at the Volkswagen automobile plant in Zwickau on February 25, 2020.

AFP via Getty Images

Tesla has excited markets with the type of battery technology it is about to reveal.

However, a study published ahead of the event shows that the US is lagging behind its global competitors, particularly Japan.

The study by the European Patent Office and the International Energy Agency found that the US ranked fifth in battery technology patents from 2000 to 2018. The US followed Japan, South Korea, Europe and China.

Tesla actually supports that the US is lagging behind
+ 1.63%
himself. Elon Musk, Tesla's chief executive, tweeted that the company would increasingly use batteries from Japan's Panasonic
South Korea's LG Electronics
and China's CATL
+ 1.29%.

Read: 3 Things You Should Know About Tesla Battery Day

One area the U.S. is strong in is potential next-generation batteries, the study said. The US leads the way with 36% of the patents on lithium-nickel-cobalt-alumina chemistry for Li-ion batteries already used by Panasonic and Tesla.

The USA follows only Japan in patents for solid-state Li-ion battery patents and is the leader with almost a third of all patent applications for redox flow batteries.

From Samsung
Panasonic, LG Electronics, Toyota
and Bosch had filed the most patent applications between 2000 and 2018.

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