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北极风_

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[求助] 镁热还原SiO2成Si过程中生成的杂质Mg2SiO4应该怎么除去 已有1人参与

如题,请问下,用HCl只能除掉MgO,除不掉Mg2SiO4,求帮忙
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suman

木虫 (著名写手)

【答案】应助回帖

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北极风_: 金币+5, ★★★很有帮助, Thank you! 2014-10-24 09:00:06
I think it is quite difficult to remove it. If you are going to use Si for LIB, you can use less amount of Mg during the reduction. Then the impurities are mainly MgO and a little bit of unreduced SiO2. It does not matter for the presence  
of SiO2, it will be inert during charge and discharge, this maybe also can improve the stability a little bit because of small volume change.
2楼2014-10-24 05:10:56
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