Industrial Technology Research Institute

National Taiwan University

Yih-Chyng Wu

Shih-Chieh Liao

Yu-Ting Chen

Nae-Lih Wu

Hung-Chun Wu

Wen-Chin Chen

A Ni&#x2014;Mn composite oxalate powder is provided. The Ni&#x2014;Mn composite oxalate powder includes a plurality of biwedge octahedron particles represented by the general formula: NiMnCoMCO.nHO, wherein q+x+y+z=1, 0&#x3c;q, x&#x3c;1, 0&#x2266;y&#x3c;1, 0&#x2266;z&#x3c;0.15, 0&#x2266;n&#x2266;5, and M is at least one of Mg, Sr, Ba, Cd, Zn, Al, Ga, B, Zr, Ti, Ca, Ce, Y, Nb, Cr, Fe and V. The above powder may be further calcined with a lithium salt to form a lithium transition metal oxide powder for use as a positive electrode material in lithium ion-batteries.

Ni&#x2014;Mn composite oxalate powder, lithium transition metal composite oxide powder and lithium ion secondary battery

The disclosure provides a Ni&#x2014;Mn composite oxalate powder, including a plurality of biwedge octahedron particles represented by the general formula: NiMnCoMCO.nHO, wherein q+x+y+z=1, 0&#x3c;q, x&#x3c;1, 0&#x2266;y&#x3c;1, 0&#x2266;z&#x3c;0.15, 0&#x2266;n&#x2266;5, and M is at least one of Mg, Sr, Ba, Cd, Zn, Al, Ga, B, Zr, Ti, Ca, Ce, Y, Nb, Cr, Fe and V. The above powder may be further calcined with a lithium salt to form a lithium transition metal oxide powder for use as a positive electrode material in lithium ion-batteries.

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Taipei, Taiwan

Yih-Chyng Wu