Retriev Technologies Incorporated

Toxco, Inc.

Other

American Hyperform, Inc.

Scott D Swoffer

W Novis Smith

William Novis Smith

Michael Arutunian

A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.

Recycling of cobalt and nickel from lithium-ion batteries

Process for recycling cobalt and nickel from lithium ion batteries

The present invention related to a method for the recycling of batteries by recovering and regenerating the cathode material. The method includes the steps of isolating the cathode particles and then regenerating the cathode particles for use in the same type of battery.

Process for recovering and regenerating lithium cathode material from lithium-ion batteries

The invention relates to the recovery of manganese dioxide, zinc hydroxide/oxide and steel from metal cased alkaline dry cell batteries which have been wet crushed. There is also a process for recovery of the steel and high purity manganese dioxide which can be directly utilized in the electrode for alkaline dry cell batteries.

Process for recycling alkaline batteries

There is provided a process for recovering ABalloy from spent nickel hydride storage batteries and/or their cells without thermal melting or dissolving the ABalloy. The process comprises a step of dissolving the Ni(OH)and separating ABalloy and still containing the lanthanum metal.

Process for the Recovery of AB5 Alloy from Used Nickel/Metal Hydride Batteries

The present invention provides a process for recovery of copper, aluminum, carbon and cathode material from spent lithium ion batteries having lithium metal oxide cathode material. The cathode material which is recovered can be regenerated with lithium hydroxide and reused as cathode material.

Recovery of lithium ion batteries

The present invention relates to a process for recycling alkaline batteries to recover metals and zinc and manganese compounds. The process provides for the separation of metal pieces and the chemical separation and recovery of zinc and manganese compounds.

The invention relates to the purification of recovered ABalloy which is obtained from spent nickel/metal hydride storage batteries by the selective removal of any Ni(OH)and the recovery of lanthanum without dissolving any ABalloy.

Process for the recovery of metals from used nickel/metal hydride batteries

The present invention provides a process of recovering ABand/or ABas well as other metals from spent nickel metal hydride batteries from a slury by a series of separation steps utilizing the screening off of larger metal particles, removal of magnetizable small metal particles from a filter and then separating ABand/or ABby passing the filtrate through a froth flotation step to separate ABand/or ABfrom lighter small particles.

Growing community of inventors

New Castle, DE, United States of America

Scott D Swoffer