| 简介 |
The invention relates to a method for recycling of nickel metal hydride batteries- electrode-specific, preferably traction batteries. Here, through said multi-stage low cobalt content of an iron- nickel fraction successively Treatment process, a release arrears of nickel, cobalt, rare earths and little iron as the starting material for the regeneration of the negative electrode, a positive electrode cobalt-poor nickel ammonium sulfate as a starting material for the regeneration of the retrieved cobalt fractiondOLLAR A The of recycling and a size reduction of the battery modules with subsequent. comprises thermal treatment of the comminuted battery scrap iron and thereon the thermally treated material screen classification, an acidic leaching of the fine fraction to yield a for the regeneration of the negative electrode as well as a leach solution release arrears useful, from the successively the metals iron, manganese and rare earths as well as by the addition of ammonium sulfate are obtained and a cobalt-containing solution nickel ammonium sulphate double salt. |
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