Abstract:
The present invention provides a cathode active material for a lithium ion battery, and preparation method thereof. The cathode active material comprises a sintered product, the sintered product is formed by sintering lithium iron phosphate with at least one metal oxide. The metal oxide is the oxide of metals selected from a group consisting of elements of IIA, 5 IIIA, IV A, V A, IIIB, IVB, and VB. The lithium ion battery prepared from the lithium ion battery cathode active material provided in th e present invention has dramatically improved capacity.
Abstract:
A composite lithium compound having a mixed crystalline structure, the mixed crystal has a first crystalline substance having one or more members with following general formulas Li x M’ y (XO 4 ) z , LiM’ XO 5 , LiM’XO 6 , and LiM’X 2 O 7 , in which M’ is an element selected from a group consisting of Na, Mn, Fe, Co, Ni, Ti, V, Y, Mg, Ca, Nb and Zn; the X is an element selected from a group consisting of P, S, As, Mo and W; and a second crystalline substance having one or more members with a general formula of A a M b N c O d . Further, a lithium ion secondary battery and a rechargeable battery with a cathode comprising the same are provided.
Abstract translation:具有混合晶体结构的复合锂化合物,所述混晶具有具有一个或多个具有以下通式LixM'y(XO4)z,LiM'XO5,LiM'XO6和LiM'X2O7的成员的第一结晶物质,其中 M'是选自Na,Mn,Fe,Co,Ni,Ti,V,Y,Mg,Ca,Nb和Zn中的一种元素; X是选自由P,S,As,Mo和W组成的组的元素; 和具有一个或多个具有通式A a M b N c O d的成员的第二结晶物质。 此外,提供锂离子二次电池和具有包含该锂离子二次电池的阴极的可再充电电池。
Abstract:
A method of preparing a cathode active material comprising a mixed crystal is provided. The method comprises the following steps: (1) providing a first crystalline substance having one or more members with general formulas Li x M’ y (XO 4 ) z , LiM’ X O 5 , LiM’XO 6 and LiM’X 2 O 7 ; (2) providing a second crystalline substance having one or more members with a general formula A a M b N c O d ; and sintering the two crystalline substances to provide the mixed crystal. Further, a method of preparing a lithium secondary battery is provided. According to the cathode active material prepared by the method, the electrical property is superior, which enhances the duration and performance of a lithium secondary battery.
Abstract:
Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries.
Abstract:
A cathode active material comprising a mixed crystal is provided. The mixed crystal have a first crystalline substance having one or more members with general formulas Li xx M yy (XO 4 ) zz , LiMXO 5 , LiMXO 6 and LiMX 2 O 7 , and a second crystalline substance having one or more members with general formulas LiD c O 2 , Li i Ni 1-d-e Co d Mn e O 2 , LiNi 1-f-g Co f Al g O 2 , Li x Ni 1-y CoO 2 and Li m Mn 2-n E n O j . The resulting mixed metal crystal can exhibit superior electrical property and is a better cathode material for lithium secondary batteries. Further, a lithium ion secondary battery and a rechargeable battery with a cathode comprising the same are provided.
Abstract:
A method of preparing a cathode active material having a mixed crystal is provided. The method comprises the following steps: providing a first crystalline substance having one or more members with general formulas Li xx M yy (XO 4 ) zz , LiMXO 5 , LiMXO 6 and LiMX 2 O 7 ; providing a second crystalline substance having one or more members with general formulas LiD c O 2 , Li i Ni 1-d-e Co d Mn e O 2 , LiNi 1-f-g Co f Al g O 2 , Li x Ni 1-y CoO 2 and Li m Mn 2-n E n O j and sintering the two crystalline substances to provide the mixed crystal. According to the cathode active material prepared by the method, the electrical property is superior, which enhances the duration and performance of a lithium secondary battery. Further, a method of forming a lithium ion secondary battery comprising the same is provided.
Abstract:
Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries.
Abstract:
The present invention provides a cathode active material for a lithium ion battery, and preparation method thereof. The cathode active material comprises a sintered product, the sintered product is formed by sintering lithium iron phosphate with at least one metal oxide. The metal oxide is the oxide of metals selected from a group consisting of elements of IIA, 5 IIIA, IV A, V A, IIIB, IVB, and VB. The lithium ion battery prepared from the lithium ion battery cathode active material provided in th e present invention has dramatically improved capacity.