This analysis of over 90,000 secondary battery innovations (measured by international patent families) provides a comprehensive account of the long-run progress of a knowledge base with a key role in the tra. ••Over 90,000 battery inventions from the period 2000-2019. Since the early days of the first Industrial Revolution in the late 18th century, global energy consumption has been on the rise. Two centuries later, by the time the informational rev. 2.1. The empirical study of industrial innovationInnovation is the process through which ideas and knowledge are converted into useful application. 3.1. Patents as an innovation indicatorPatents are intellectual property rights on inventions. A patent describes claims to useful ideals and assigns rights to new knowledge. As le. 4.1. Basic stylized factsThe global aggregate yearly volume of battery IPFs increased almost every year during the time frame assessed in this study. There wer.
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To be very clear: This especially means that the lithium-ion battery category does not contain any patent families tagged as solid-state battery inventions. The fourth step's purpose was to add patent data related to redox-flow and nickel–hydrogen batteries to the dataset.
Which technologies grew in relevance to battery patenting?
We find that several battery-related technologies and applications, such as energy storage systems, battery management systems, wireless power transmission, electric vehicle charging, and uncrewed aerial vehicles (i.e., drones), grew in relevance both in absolute terms and relative to general battery patenting activity.
Are all patents related to solid-state batteries tagged?
Please note that due to the considerable overlap of the concept of solid-state batteries with other technologies, especially lithium-ion batteries, all patent families that were classified as patents related to solid-state batteries were untagged in any other category in which they acquired tags through the process described here.
The majority of battery patents are found to originate in Asia while high battery patent intensities are revealed in the performance of several Asian and European countries. Overall, a considerable increase in annual battery patenting activity is observed from 2000–2009 to 2010–2019.
Overall, a considerable increase in annual battery patenting activity is observed from 2000–2009 to 2010–2019. Second, we also found that four battery technologies – redox-flow, solid-state, sodium-ion, and lithium–sulfur batteries – have displayed vibrant growth in recent years.
Can patents be used to map energy storage technologies?
Albeit a gush of recent work using patents in connection with energy storage for particular technologies (e.g., , , ), patents remain under-exploited for conducting integrative mapping exercises of battery development, i.e. across types, geographies and long stretches of time (some exceptions being, , ).