{"id":542,"date":"2026-07-08T15:36:51","date_gmt":"2026-07-08T15:36:51","guid":{"rendered":""},"modified":"2026-10-15T15:09:42","modified_gmt":"2026-10-15T07:09:42","slug":"v2-application-bmed-4","status":"publish","type":"iw_application","link":"https:\/\/www.rubri.cn\/en\/application\/v2-application-bmed-4\/","title":{"rendered":"Lithium-salt conversion from lithium sulfate to lithium hydroxide"},"content":{"rendered":"

II. BPED \u2014 bipolar membrane electrodialysis (BMED) application scenario samples<\/h2>\n

2.1 Preparation of lithium hydroxide with bipolar membranes<\/p>\n

Technical route: after lithium batteries are dismantled, sulfuric acid is used for dissolution to form lithium sulfate, which then enters resin to remove multivalent ions and meet the feedwater quality requirements for bipolar membranes. The bipolar membrane process produces sulfuric acid and lithium hydroxide.<\/p>\n

Principle overview:<\/p>\n

BPM (bipolar membrane) dissociates water inside the membrane into H\u207a and OH\u207b<\/p>\n

The feed solution is fed into the cathode chamber and anode chamber, respectively<\/p>\n

In the middle C\/A chamber, H\u207a, OH\u207b, and SO\u2084\u00b2\u207b ions migrate directionally under the electric field<\/p>\n

The outlets produce H\u2082SO\u2084 and LiOH respectively (by-product Li\u2082SO\u2084)<\/p>\n

Figure 2 - Preparation of lithium hydroxide with bipolar membranes<\/p>\n

Illustrative materials<\/h2>\n
\n
\"\u9502\u76d0\u8f6c\u5316\u5236\u5907\uff08\u786b\u9178\u9502
Diagram of lithium salt conversion preparation (lithium sulfate \u2192 lithium hydroxide)<\/figcaption><\/figure>\n
\"\u9502\u76d0\u8f6c\u5316\u5236\u5907\uff08\u786b\u9178\u9502
Diagram of lithium salt conversion preparation (lithium sulfate \u2192 lithium hydroxide)<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"

2.1 Preparation of lithium hydroxide with bipolar membranes<\/p>","protected":false},"featured_media":644,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"iw_technology":[181],"iw_industry":[248],"class_list":["post-542","iw_application","type-iw_application","status-publish","has-post-thumbnail","hentry","iw_technology-bmed","iw_industry-v2-industry-402010fe4d"],"_links":{"self":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/iw_application\/542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/iw_application"}],"about":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/types\/iw_application"}],"version-history":[{"count":1,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/iw_application\/542\/revisions"}],"predecessor-version":[{"id":641,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/iw_application\/542\/revisions\/641"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/media\/644"}],"wp:attachment":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/media?parent=542"}],"wp:term":[{"taxonomy":"iw_technology","embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/iw_technology?post=542"},{"taxonomy":"iw_industry","embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/iw_industry?post=542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}