Methods and systems for electrolyte regeneration are provided, which regenerate a spent alkaline electrolyte (SE) comprising dissolved aluminum hydrates from an aluminum-air battery, by electrolysis, to precipitate aluminum tri-hydroxide (ATH) and form regenerated alkaline electrolyte, and adding a same-cation salt to an anolyte used in the electrolysis to supplant a corresponding electrolyte cation. The regeneration may be carried out continuously and further comprise mixing the SE and the same-cation salt in a salt tank configured to deliver the anolyte, removing the regenerated alkaline electrolyte from a catholyte tank configured to deliver the catholyte, and filtering the ATH from a solution delivered from the salt tank to the anolyte. Optionally, the salt may be a buffering salt, and in some cases chemical reactions may be used to enhance the regeneration by electrolysis.
提供了用于电解液再生的方法和系统,其通过电解而再生包含来自铝‑空气电池的溶解的氢氧化铝的废碱性电解液(SE),以沉淀三氢氧化铝(ATH)并形成再生的碱性电解液,并且添加与电解中使用的阳极电解液相同阳离子的盐以取代相应的电解液阳离子。该再生可以连续进行,并且还包括在配置为输送阳极电解液的盐槽中混合SE和相同阳离子的盐,从配置为输送阴极电解液的阴极电解液槽中移出再生的碱性电解液,和由从盐槽输送到阳极电解液的溶液中过滤ATH。可选地,盐可以是缓冲盐,并且在一些情况下可以使用化学反应增强通过电解的再生。
ALKALINE ELECTROLYTE REGENERATION
碱性电解液再生
2022-01-21
Patent
Elektronische Ressource
Chinesisch
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / C23G CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS , Reinigen oder Entfetten metallischer Werkstoffe durch chemische Verfahren, ausgenommen Elektrolyse / C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS , Elektrolytische oder elektrophoretische Verfahren für die Herstellung von Verbindungen oder von nichtmetallischen Elementen |