電極材料の製造方法、リチウムの回収方法、正極材料及び電極並びに電池

Title:

電極材料の製造方法、リチウムの回収方法、正極材料及び電極並びに電池

Document Type and Number:

Japanese Patent JP4767798

Kind Code:

B2

Abstract:

To provide a manufacturing method of an electrode material, along with a recovery method for lithium, positive electrode material, electrode, and battery, capable of reducing the cost of lithium raw material, and also capable of reusing the lithium material, for effective use of the material.

In the manufacturing method of the electrode material, Li3PO4slurry is mixed with Fe source, A source, and reducing agent (SP2), where the resulting mixture is subjected to hydrothermal synthesis, to obtain a reactive product containing LixFeyAzPO4(where, A is one or more kinds selected from among Mg, Ca, Sr, Sc, Y, Ti, Zr, V, Nb, Cr, Mo, W, Mn, Co, Ni, Cu, Ag, Zn, In, Sn, Sb, rare earth element, and 0xFeyAzPO4and non-reactive Li solution (SP4); the impurities are removed from the non-reactive Li solution (SP6); and Li is made to react with phosphorous acid, to provide Li3PO4slurry again (SP1).

Inventors:

Yoshiyuki Toge

Application Number:

JP2006240008A

Publication Date:

September 07, 2011

Filing Date:

September 05, 2006

Export Citation:

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Assignee:

Sumitomo Osaka Cement Co., Ltd.

International Classes:

C22B3/44; C22B26/12; H01M10/05

Domestic Patent References:

JP2006048991A
JP2005050684A
JP2005047751A

Attorney, Agent or Firm:

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama

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