发明名称 |
METHOD OF MANUFACTURING CHEMICAL MANGANESE DIOXIDE FROM TERNARY SYSTEM CATHODE ACTIVE MATERIAL, CHEMICAL MANGANESE DIOXIDE MANUFACTURED BY THIS METHOD, AND SECONDARY BATTERY INCLUDING CHEMICAL MANGANESE DIOXIDE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing chemical manganese dioxide by selectively precipitating only Mn by use of oxidant from a sulfur reducing leaching solution, for selectively separating the Mn from a ternary system cathode active material (Li(Ni<SB POS="POST">1/3</SB>Mn<SB POS="POST">1/3</SB>Co<SB POS="POST">1/3</SB>)O<SB POS="POST">2</SB>) as a cathode active material of a lithium ion battery to be used for a mobile phone or an electric car. <P>SOLUTION: The method of manufacturing chemical manganese dioxide from a ternary system cathode active material of the present invention includes: (a) a first leaching step of leaching ternary system cathode active material powder with a mixture of sulfur and a reducing agent; (b) a second leaching step of successively leaching the first leaching solution; and (c) a step of adding Na<SB POS="POST">2</SB>S<SB POS="POST">2</SB>O<SB POS="POST">8</SB>to the second leaching solution, and selectively precipitating Mn to manufacture chemical manganese dioxide. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2012204343(A) |
申请公布日期 |
2012.10.22 |
申请号 |
JP20120064061 |
申请日期 |
2012.03.21 |
申请人 |
KOREA INST OF GEOSCIENCE & MINERAL RESOURCES |
发明人 |
SHIN NOBUAKI;KANG JIN-GU;SHU SEIKO;CHANG HAN-KWON |
分类号 |
H01M4/50;C01G45/02;H01M6/52;H01M10/54 |
主分类号 |
H01M4/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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