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Study: Recycled Lithium Batteries as Good as Newly Mined (spectrum.ieee.org)

635 points by mpweiher · 1798 days ago · 187 comments on HN

Article summary

A new study shows that batteries with recycled cathodes can be as good as, or even better than, those using new state-of-the-art materials. The recycled material has a more porous microscopic structure, which is better for lithium ions to slip in and out of, resulting in batteries with similar energy density and up to 53% longer cycle life. The recycling process involves shredding batteries, removing non-essential materials, and dissolving the remaining black mass to produce ready-to-use cathode materials. This technology has the potential to minimize the social and environmental impact of mining and reduce waste.

Main themes

  • battery recycling
  • sustainable energy
  • resource consumption
  • recyclability
  • environmental impact
  • waste reduction

What commenters say

  • The effectiveness of the recycling process needs to be evaluated independently to confirm its benefits.
  • Recycling batteries is beneficial due to the ease of reclaiming metals and the lower energy required to separate them from contaminants.
  • The true cost of limited resources is difficult to calculate, making it challenging to implement a tax on resource consumption.
  • Standardizing packaging and designing products for recyclability could significantly improve the efficiency of recycling processes.
  • The externalized costs of plastic disposables are often passed on to society and the environment, rather than being paid by manufacturers or consumers.
  • The energy and water costs of cleaning and sanitizing reusable containers can be substantial, potentially making single-use products more environmentally friendly in some cases.
  • Implementing a tax on resource consumption could encourage companies to use recycled materials and reduce waste, but it would require a complex system to determine the true cost of resources.
  • Designing products with recyclability in mind from the outset could make recycling more efficient and cost-effective.