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Recovery of Lithium from Retired Ternary Lithium Batteries by Carbothermal Reduction－Two-step Leaching Method
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Min ZHANG1, Xiaoqian WU1, Ming CHEN3, Hongbo LI2, Zhenguang HU1
Hydrometallurgy of China | 2026, 45(3) : 308 - 316
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Hydrometallurgy of China | 2026, 45(3): 308-316
• Experiment Research •
Recovery of Lithium from Retired Ternary Lithium Batteries by Carbothermal Reduction－Two-step Leaching Method
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Min ZHANG1, Xiaoqian WU1, Ming CHEN3, Hongbo LI2, Zhenguang HU1
Affiliations
  • 1.College of Chemistry and Bioengineering, Guilin University of Technology, Guilin　541006, China
  • 2.Guangxi Zhiliang New Materials Co., Ltd., Nanning　530000, China
  • 3.Shaanxi Nonferrous Metals Technology Research Institute Co., Ltd., Xi'an　710000, China
Published: 2026-06-20 doi: 10.13355/j.cnki.sfyj.2026.03.005
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The selective recovery of lithium from retired ternary lithium batteries by carbothermal reduction－two-step leaching (water leaching-acid leaching) process was studied. The effects of carbothermal reduction and leaching test conditions on lithium leaching were investigated. The results show that the cathode powder and activated carbon are compounded according to the ratio of carbon mass fraction of 27%. After roasting at 600 ℃ for 90 min, the roasting product is mixed with ultrapure water according to the solid-liquid mass volume ratio of 1/18, and then 83% of the theoretical amount of sulfuric acid is added dropwise. After leaching at 65 ℃ for 20 min, the lithium leaching rate is more than 98%, while the leaching rates of nickel, cobalt and manganese are less than 5%, and the lithium recovery effect is better.

retired ternary lithium battery  /  lithium  /  carbothermal reduction  /  sulfuric acid  /  leaching  /  recovery
Min ZHANG, Xiaoqian WU, Ming CHEN, Hongbo LI, Zhenguang HU. Recovery of Lithium from Retired Ternary Lithium Batteries by Carbothermal Reduction－Two-step Leaching Method[J]. Hydrometallurgy of China, 2026 , 45 (3) : 308 -316 . DOI: 10.13355/j.cnki.sfyj.2026.03.005
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Year 2026 volume 45 Issue 3
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.03.005
  • Receive Date：2026-01-20
  • Online Date：2026-09-11
  • Published：2026-06-20
Article Data
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History
  • Received：2026-01-20
  • Revised：2026-02-28
Funding
Affiliations
    1.College of Chemistry and Bioengineering, Guilin University of Technology, Guilin　541006, China
    2.Guangxi Zhiliang New Materials Co., Ltd., Nanning　530000, China
    3.Shaanxi Nonferrous Metals Technology Research Institute Co., Ltd., Xi'an　710000, China
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https://castjournals.cast.org.cn/joweb/sfyj/EN/10.13355/j.cnki.sfyj.2026.03.005
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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