Scholarlink

<p>The recycling of spent lithium-ion batteries (LIBs) has gained extensive interest due to its simultaneous environmental and resource-saving benefits. Although using strong corrosive acids to recover critical metals from wasted LIBs is now the favoured method, the excessive use of chemical reagents can pose major environmental problems. In this paper, the use of greener reagents for the treatment of cathodic material coming from lithium-cobalt oxide (LCO) and nickel-manganese-cobalt (NMC) batteries was investigated; specifically, leaching with organic acids such as acetic acid, citric acid, and formic acid was innovatively studied. The auspicious results showed that 90% of LCO and 84% of NMC cathodic materials were leached after 60&#xa0;min of treatment using formic and citric acid, respectively. Subsequently, chemical precipitation of the metals was performed by increasing the pH and adding sulfides, allowing for the recovery of almost 99% of cobalt and 100% of cobalt, nickel, and manganese previously leached from LCO and NMC cathode materials, respectively. Based on the experimental investigation, it was proven that the proposed innovative process is suitable for recovering valuable metals contained in LCO and NMC batteries without generating toxic wastewater or introducing hazardous chemicals. Thus, the suggested method may provide efficient cobalt, nickel, and manganese recovery from wasted LIBs while eliminating possible environmental and human health risks.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Eco-friendly leaching of transition metals from lithium-ion battery cathodes: comparative case study on the use of mild organic acids

  • 期刊论文

  • 发表日期：

    2026年3月20日

查看全文
  • Pietrogiovanni Cerchier,
  • Francesco Miserocchi,
  • Bianca-Maria Bresolin,
  • Luca Pezzato,
  • Katya Brunelli

摘要

The recycling of spent lithium-ion batteries (LIBs) has gained extensive interest due to its simultaneous environmental and resource-saving benefits. Although using strong corrosive acids to recover critical metals from wasted LIBs is now the favoured method, the excessive use of chemical reagents can pose major environmental problems. In this paper, the use of greener reagents for the treatment of cathodic material coming from lithium-cobalt oxide (LCO) and nickel-manganese-cobalt (NMC) batteries was investigated; specifically, leaching with organic acids such as acetic acid, citric acid, and formic acid was innovatively studied. The auspicious results showed that 90% of LCO and 84% of NMC cathodic materials were leached after 60 min of treatment using formic and citric acid, respectively. Subsequently, chemical precipitation of the metals was performed by increasing the pH and adding sulfides, allowing for the recovery of almost 99% of cobalt and 100% of cobalt, nickel, and manganese previously leached from LCO and NMC cathode materials, respectively. Based on the experimental investigation, it was proven that the proposed innovative process is suitable for recovering valuable metals contained in LCO and NMC batteries without generating toxic wastewater or introducing hazardous chemicals. Thus, the suggested method may provide efficient cobalt, nickel, and manganese recovery from wasted LIBs while eliminating possible environmental and human health risks.