EPO: rapid rise in battery innovation playing key role in clean energy transition
Improving the capacity to store electricity is playing a key role in the transition to clean energy technologies. Between 2005 and 2018, patenting activity in batteries and other electricity storage technologies grew at an average annual rate of 14% worldwide, four times faster than the average of all technology fields, according to a joint study published today by the European Patent Office (EPO) and the International Energy Agency (IEA).
The report shows that batteries account for nearly 90% of all patenting activity in the area of electricity storage, and that the rise in innovation is chiefly driven by advances in rechargeable lithium-ion batteries used in consumer electronic devices and electric cars. Electric mobility in particular is fostering the development of new lithium-ion chemistries aimed at improving power output, durability, charge/discharge speed and recyclability. Technological progress is also being fuelled by the need to integrate larger quantities of renewable energy such as wind and solar power into electricity networks.
The study also shows that Japan and South Korea have established a strong lead in battery technology globally, and that technical progress and mass production in an increasingly mature industry have led to a significant drop in battery prices in recent years – by nearly 90% since 2010 in the case of Li-ion batteries for electric vehicles, and by around two-thirds over the same period for stationary applications, including electricity grid management.
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