Researchers explore collaboration behavior and knowledge areas in lithium-ion battery recycling

New patent analysis examines international collaboration in battery recycling / Study reveals limited collaboration between regions / Western countries risk losing connection

The increasing adoption of lithium-ion batteries in electric vehicles and portable electronics is leading to a dramatic increase in end-of-life batteries. Effective recycling solutions are therefore becoming increasingly urgent. A research team from our Institute for Business Administration at the University of Münster has now conducted a comprehensive patent analysis to track the evolving technological landscape in battery recycling and support the development of strategic partnerships in this market.

The scientists analyzed patent data from 1990 to 2024, examining three time periods to identify trends and developments. Using network analyses of patent assignees and machine learning to identify knowledge areas, they were able to gain important insights into collaboration patterns and technological priorities.

The analysis reveals a notable lack of international collaboration in the field of battery recycling. This is particularly problematic for Western countries, which currently hold minimal presence in the patent landscape.

The study identifies key knowledge areas in lithium-ion battery recycling and links these to respective patent holders. This makes it possible to assess the knowledge base of different actors and identify potential new research topics as well as possible collaborators or competitors.

The complex landscape of battery recycling is significantly shaped by the absence of a dominant recycling solution, primarily attributed to differences in battery chemistry and design. The results of the patent analysis can help better understand these challenges and make strategic decisions for the future.

Link to original publication: https://doi.org/10.1039/D5EB00056D