- Patent Title: Devices and method for smelterless recycling of lead acid batteries
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Application No.: US16407914Application Date: 2019-05-09
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Publication No.: US11239507B2Publication Date: 2022-02-01
- Inventor: Brian Dougherty , Michael John King , Robert Lewis Clarke , Stephen R. Clarke , Michael David Hurwitz
- Applicant: Aqua Metals Inc.
- Applicant Address: US CA Alameda
- Assignee: Aqua Metals Inc.
- Current Assignee: Aqua Metals Inc.
- Current Assignee Address: US CA Alameda
- Agency: Umberg Zipser LLP
- Main IPC: H01M10/54
- IPC: H01M10/54 ; C25C1/18 ; C25C5/02 ; C25C7/00 ; C25C7/08 ; H01M4/14 ; H01M10/06
Abstract:
Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.
Public/Granted literature
- US20190267681A1 Devices and Method for Smelterless Recycling of Lead Acid Batteries Public/Granted day:2019-08-29
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