住友金属鉱山：高純度レアメタル回収：ＬｉＢ正極に再利用（動画）：
Sumitomo MM: Hi-purity rare metal recovery: Reuse LiB positive electrode:
住友金属矿业：高纯度稀有金属回收：再用于锂电池正极
住友金属鉱山：
8月16日、
- 廃棄済・ＬｉＢから、
- ニッケルやコバルトを回収、高純度化することで、
- ＬｉＢ用正極材原料に再利用できると発表した。
独自のリチウム回収技術：
さらに独自のリチウム回収技術により、
使用済み二次電池から銅やニッケル・コバルト・リチウムを再資源化、
新たなリサイクルプロセスを世界で初めて確立。
2023年に実機を稼働：
同技術の事業化を進め、2023年度中には実機を稼働させる。
自動車のEV化によるニッケルやコバルトの需要拡大や、
二次電池の水平リサイクルにつなげる。
専門紙「日刊産業新聞」
https://www.japanmetal.com/news-h20210817109761.html
Success in Demonstration Experiments for Secondary Battery Recycling Technology That Includes Cobalt Recovery
– Establishment of a World-First New Recycling Process That Integrates Production of Soluble Slag That Enables Lithium Recovery –
August 16, 2021
Sumitomo Metal Mining Co.,
SMM has verified that nickel and cobalt from secondary batteries such as used lithium ion batteries (LIB) can be reused as a raw material for cathode material of LIBs through recovery and purification.
Additionally, through our world-first original lithium recovery technology,
we have established a new recycling process that is able to recycle
copper,
nickel,
cobalt and
lithium
from used secondary batteries.
News | Sumitomo Metal Mining Co., Ltd.
https://www.smm.co.jp/en/news/release/2021/08/001473.html
Now, we have optimized processes at this pilot plant,
and have been successful in the recovery of a high-purity nickel-cobalt mixture by stably and efficiently separating out the impurities in used secondary batteries.
Moreover, we manufactured and evaluated LIB cathode material that we made from the nickel-cobalt mixture.
We were able to verify that
the performance of those batteries was equivalent to that of batteries manufactured using existing raw materials derived from natural resources.
Additionally, we were successful in
producing a soluble slag that enables lithium recovery by pyrometallurgical smelting processes which has heretofore been difficult.
Through integration of this world-first original technology into our processes,
we have established a new recycling process that is able to recycle copper, nickel, cobalt and lithium from used secondary batteries.
This technology and process
were also developed to aim the resource recovery rate for used secondary batteries laid out in the European Commission’s proposal for a battery regulation that was proposed in December 2020.
Success in Demonstration Experiments for Secondary Battery Recycling Technology That Includes Cobalt Recovery
– Establishment of a World-First New Recycling Process That Integrates Production of Soluble Slag That Enables Lithium Recovery –
Moving forward, we estimate that the electrification of automobiles is going to further
If we are able to commercialize this process, which has verified “battery to battery” recycling,
we expect to be able to take the domestic sustainable circular economy to the next level
and to make contributions to resource recycling in response to global resource depletion.
Moving forward, through our battery recycling initiatives,
SMM will continue to engage in
the realization of becoming “a company that generates resources through high technological capabilities” laid out in the “Effective Use of Non-Ferrous Metal Resources” material issue of our “Vision for 2030.”
https://www.smm.co.jp/en/news/release/uploaded_files/20210816_EN.pdf