Abstract: A positive electrode active material powder comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, a metal M? and oxygen, wherein the metal M? has a formula: M?=(Niz(Ni0.5Mn0.5)yCox)1-kAk, wherein A is a dopant, 0.60?z?0.86, 0.05?y?0.20, 0.05?x?0.20, x+y+z+k=1, and k?0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 ?m to 15 ?m and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising: sulfur in a content superior or equal to 0.150 wt % and inferior or equal to 0.375 wt % with respect to the total weight of the positive electrode active material powder, and aluminum in a content superior or equal to 0.05 wt % and inferior or equal to 0.15 wt % with respect to the total weight of the positive electrode active material powder.

Abstract: A positive electrode active material powder suitable for lithium-ion batteries comprises lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, M? and oxygen, wherein M? has a formula: M?=NizMnyCoxAk, wherein A is a dopant, 0.60?z?0.89, 0.05?y?0.20, 0.05?x?0.20, x+y+z+k=1, and k?0.01. The positive electrode active material powder has a median particle size D50 ranging from 5 ?m to 15 ?m, a span ranging from 0.25 to 0.90, and a surface layer thickness ranging from 10 nm to 200 nm. The surface layer comprises: sulfur in a content superior or equal to 0.150 wt % and inferior or equal to 0.375 wt % with respect to the total weight of the positive electrode active material powder, and aluminum in a content superior or equal to 0.05 wt % and inferior or equal to 0.15 wt % with respect to the total weight of the positive electrode active material powder.

Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, M? and oxygen, wherein M? has a formula: M?=NizMnyCoxAk, wherein A is a dopant, 0.60?z?0.86, 0.05?x?0.20, x+y+z+k=1, and k?0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 ?m to 15 ?m and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising: sulfur in a content superior or equal to 0.150 wt % and inferior or equal to 0.375 wt % with respect to the total weight of the positive electrode active material powder, and sulfate ion (SO42?) in a content superior or equal to 4500 ppm and inferior or equal to 11250 ppm.

Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, a metal M? and oxygen, wherein the metal M? has a formula: M?=(NizMnyCox)1-kAk, wherein A is a dopant, 0.55?z?0.89, 0.05?y?0.25, 0.05?x?0.25, x+y+z+k=1, and k?0.01, said positive electrode active material powder having a mean particle size D50 ranging from 3 ?m to 15 ?m and a surface layer thickness ranging from 5 nm to 200 nm. The surface layer comprises aluminum in a content superior or equal to 0.04 wt % and inferior or equal to 0.15 wt % relative to the total weight of the positive electrode active material.

Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, M? and oxygen, wherein M? has a formula: M?=NizMnyCoxAk, wherein A is a dopant, 0.60?z?0.90, 0.05?y?0.20, 0.05?x?0.20, x+y+z+k=1, and k?0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 ?m to 15 ?m, a span ranging from 0.25 to 0.90, and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising: sulfur in a content superior or equal to 0.150 wt % and inferior or equal to 0.375 wt % with respect to the total weight of the positive electrode active material powder, and sulfate ion (SO42?) in a content superior or equal to 4500 ppm and inferior or equal to 11250 ppm.

Abstract: A positive electrode active material for lithium-ion secondary batteries comprises Li, Co, O, and optionally M?. M? comprises Al and/or Ti and optionally one or more elements selected from the group consisting of Ni, Mn, B, Sr, Mg, Nb, W, F, and Zr. A molar ratio of Co to M?+Co (Co/(M?+Co)) is more than 0.90. The positive electrode active material comprises a first LCO powder and a second LCO powder that are both single-crystalline powders. The first LCO powder has a first median particle size D50A of between 12 ?m and 25 ?m, the second LCO powder has a second median particle size D50B of between 3 ?m and 8 ?m, and the volume fraction of the second LCO powder relative to the total volume of the positive electrode active material is between 10% and 40%.

Abstract: The present invention relates to positive electrode active materials in rechargeable lithium-ion batteries having a difference in cobalt and nickel concentration between the center and the edge of secondary particle and having a specific range of crystallite size.

Abstract: The invention relates to a positive electrode active material for suitable for electric vehicle (EV) and hybrid electric vehicle (HEV) applications, wherein said material comprises lithium transition metal-based oxide particles comprising soluble S content and having a high specific surface area.

Abstract: The present invention provides a positive electrode active material for lithium-ion rechargeable batteries, wherein the positive electrode active material comprises Li, M?, and oxygen, wherein M? comprises: —Ni in a content x between 60.0 mol % and 95.0 mol %, relative to M?; —Co in a content y, wherein 0)<y<40.0 mol %, relative to M?: —Mn in a content z, wherein 0)<z<70.0 mol %, relative to M?: -D in a content a, wherein 0<a<2.0 mol %, relative to M?, wherein D comprises an element other than Li, O, Ni, Co, Mn, F, W and B; —F in a content b, wherein b>0, preferably between 0.1 mol % and 4.0 mol %, relative to M?; —W in a content c between 0.1 mol % and 4.0 mol %, relative to M?; —B in a content e, wherein 0<e<4.0 mol %, relative to M?; and, -wherein x, y, z, a, e and c are measured by Inductively Coupled Plasma—Optical Emission Spectrometry (ICP-OES), -wherein b is measured by Ion chromatography (IC), -wherein x++y+z+a+b+c+e is 100.

Abstract: The present invention provides a positive electrode active material for lithium-ion rechargeable batteries, wherein the positive electrode active material comprises Li, M?, and oxygen, wherein M? comprises: Ni in a content x between 60.0 mol % and 95.0 mol %, relative to M?; Co in a content y, wherein 0?y?40.0 mol %, relative to M?; Mn in a content z, wherein 0?z?70.0 mol %, relative to M?; D in a content a, wherein 0?a?2.0 mol %, relative to M?, wherein D comprises an element other than Li, O, Ni, Co, Mn, F, W and S; F in a content b, wherein b>0, preferably b is between 0.1 mol % and 4.0 mol %, relative to M?; W in a content c, wherein c>0, preferably 0.01?c?4.0 mol %, relative to M?; S in a content d, wherein d>0, preferably between 0.01 mol % and 3.0 mol %, relative to M?; and, B in a content e, wherein 0?e?4.

Abstract: The present invention relates to positive electrode active materials in rechargeable lithium-ion batteries having a difference in cobalt concentration between the center and the edge of particle.

Abstract: The present invention provides a positive electrode active material powder for lithium-ion rechargeable batteries, wherein the positive electrode active material comprises Li, M?, S and O, wherein M? consists of: Ni in a content x between 60.0 mol % and 95.0 mol %, relative to M? Co in a content y between 0.0 mol % and 25.0 mol %, relative to M?, Mn in a content z between 0.0 mol % and 25.0 mol %, relative to M?, W in a content a of 0.05 mol % or more, relative to M? D in a content b between 0.0 mol % and 2.0 mol %, relative to M?, wherein D comprises at least one element of the group consisting of: Al, B, Ba, Ca, Cr, F, Fe, Mg, Mo, Nb, Si, Sr, Ti, Y, V, Zn and Zr, and, wherein x, y, z, a, and b are measured by ICP, wherein x+y+z+a+b is 100.0 mol %, wherein the positive electrode active material comprises soluble sulfur in a content of 0.30 mol % or more, relative to M?.

Abstract: A precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor being either one of a metal-bearing M?-hydroxide, -oxyhydroxide or -carbonate, with M?=Ni1-x-y-zMnxCOyAz with x>0, y>0, 0.70?1-x-y-z?0.95 and 0?z<0.1, the precursor comprising having a core comprising a metal-bearing compound M?c and a shell comprising a metal-bearing compound M?s, wherein M?c=Ni1-xc-yc-zcMnxcCOycAzc with 0<xc?0.2, 0<yc?0.2, 0?zc<0.1 and 0.75?1-x-y-z?0.95, and M?s=Ni1-xs-ys-zsMnxsCOysAzs with 0<xs?0.25, 0.75<ys?0.95, 0?zs<0.1 and 0?1-xs-ys-zs?0.10.

Abstract: A positive electrode active material for batteries which comprises Li, M?, and oxygen, wherein M? comprises: Ni in a content a between 60.0 mol % and 75.0 mol %; Co in a content x between 0.0 mol % and 20.0 mol %; Mn in a content y between 0.0 mol % and 35.0 mol %, a dopant D in a content z between 0.0 mol % and 2.0 mol %, Al, B and W in a total content c between 0.1 mol % and 5.0 mol %, wherein the active material has an Al content AlA, a B content BA, and a W content WA, wherein a, x, y, z, c, AlA, BA and WA are measured by ICP, wherein AlA, BA and WA, wherein the positive electrode active material, when measured by XPS analysis, shows an average Al fraction AlB, an average B fraction BB and an average W fraction WB, wherein AlB/AlA, BB/BA, and WB/WA are all larger than 1.0, and wherein the positive electrode active material is a single crystalline powder.

Abstract: A powderous positive electrode material for a lithium secondary battery has the general formula Li1+x[Ni1?a?b?cMaM?bM?c]1?xO2?z. M is one or more elements of the group Mn, Zr and Ti. M? is one or more elements of the group Al, B and Co. M? is a dopant different from M and M?, and x, a, b and c are expressed in mol with ?0.02?x?0.02, 0?c?0.05, 0.10?(a+b)?0.65 and 0?z?0.05. The material has an unconstrained cumulative volume particle size distribution value (?0(D10P=0)), a cumulative volume particle size distribution value after having been pressed at a pressure of 200 MPa (?P(D10P=200)) and a cumulative volume particle size distribution value after having been pressed at a pressure of 300 MPa (?P(D10P=300)). When ?P(D10P=200) is compared to ?0(D10P=0), the relative increase in value is less than 100%. When ?P(D10P=300) is compared to ?0(D10P=0), the relative increase in value is less than 120%.

Abstract: A powderous positive electrode active material for lithium ion secondary battery having particles comprising Li, M, and O, said particles having a Li/M molar ratio superior or equal to 0.98 and inferior or equal to 1.10, said powderous positive electrode active material being characterized in that said powder has a flow index of at least 0.10 and at most 0.30 when said powder has a D50 of at least 4.0 ?m and of at most 6.0 ?m or said powder has a flow index of at least 0.10 and of at most 0.20 when said powder has a D50 superior to 6.0 ?m and of at most 10.0 ?m, wherein the D50 is the median particle size of the powder.

Abstract: A lithium secondary cell having an operating voltage ?4.35V, comprising a cathode comprising a doped LiCoO2 active material, an anode comprising graphite, and an electrolyte comprising a carbonate-based solvent, a lithium salt and both a succinonitrile (SN) and a lithium bis(oxalato)borate (LiBOB) additive wherein during the discharge at 45° C. from a state of charge (SOC) of 100% at 4.5V to a SOC of 0 at 3V at a C/10 rate the difference of the SOC at 4.42V and 4.35V is at least 7% but less than 14%, and wherein the active material is doped by at least 0.5 mole % of either one or more of Mn, Mg and Ti.

Abstract: A lithium cobalt-based oxide cathode active material powder comprising particles having a median particle size D50 of greater than or equal to 20 ?m, preferably 25 ?m, and less than or equal to 45 ?m, said particles having an averaged circularity of greater than or equal to 0.85 and less than or equal to 1.00, said particles having a general formula Li1+aCo1-x-y-zAlxM?yMezO2, wherein M? and Me comprise at least one element of the group consisting of: Ni, Mn, Nb, Ti, W, Zr, and Mg, with ?0.01?a?0.01, 0.002?x?0.050, 0?y?0.020 and 0?z?0.050, said lithium cobalt-based oxide particles having a R-3m structure and (018) diffraction peak asymmetry factor AD(018) of greater than or equal to 0.85 and less than or equal to 1.15, said diffraction peak asymmetry factor being obtained by a synchrotron XRD spectrum analysis with an emission wavelength ? value equal to 0.825 ?.

Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particle comprising the elements: Li, M? and oxygen, wherein M? has a formula: M?=NizMnyCoxAk, wherein A is a dopant, 0.80?z?0.90, 0.05?y?0.20, 0.05?x?0.20, x+y+z+k=1, and 0?k?0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 ?m to 15 ?m and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising sulfate ion (SO42?) in a content superior or equal to 6.78·z?4.83 wt % and inferior or equal to 6.78·z?4.33 wt % with respect to the total weight of the positive electrode active material.

Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, M? and oxygen, wherein M? has a formula: M?=NizMnyCoxAk, wherein A is a dopant, 0.60?z?0.90, 0.05?y?0.20, 0.05?x?0.20, x+y+z+k=1, and k?0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 ?m to 15 ?m, a span ranging from 0.25 to 0.90, and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising: sulfur in a content superior or equal to 0.150 wt % and inferior or equal to 0.375 wt % with respect to the total weight of the positive electrode active material powder, and sulfate ion (SO42?) in a content superior or equal to 4500 ppm and inferior or equal to 11250 ppm.