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 positive electrode active material for lithium-ion rechargeable batteries comprises particles having Li, M?, and oxygen, wherein M? comprises Ni, in a content x, wherein x?80 at %; Co in a content y, wherein 0.01?y?20.0 at %; Y in a content b, wherein 0.01?b?2.0 at %; and Zr in a content c, wherein 0.01?c?2.0 at %, all at % being relative to M?, and optionally Mn and D. D is at least one element selected from B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, V, W, and Zn. The material comprises monolithic particles, wherein the particles have a Co content Coedge as measured by cross-sectional EDS at an edge of the particles, and a Co content Cocenter as measured by cross-sectional EDS at a center of the particle, wherein the ratio Coedge/Cocenter>1.10.

Abstract: The present invention relates to Ni-rich Li-rich positive electrode active material doped with high-valence transition metal ions, such as Mo, exhibiting high capacity and excellent cycling stability.

Abstract: The present invention relates to Li-rich positive electrode active material comprising a layered structure and a disordered rock-salt structure exhibiting high capacity and excellent cycling stability.

Abstract: Positive electrode active material, wherein the metal has a composition M, which consists of Ni in a content x, Mn in a content y, Co in a content z, and A in a content a. A is at least one chemical element other than Li, Ni, Mn, Co, and O. x, y, z, and a are expressed as molar contents and x+y+z+a=100%. Further, x?70.0%, 0?y?30.0%, 0?z?30.0%, 0?a?5.0%, and an X-Ray diffractogram from Cu K-? X-ray radiation source of the positive electrode active material has a (003) peak at 2?=17.0° to 20.0° and (104) peak at 2?=43.0° to 46.0°. The ratio (maximum intensity of the (003) peak)/(maximum intensity of the (104) peak) is at least 1.880.

Abstract: Positive electrode active material comprising lithium, a metal other than lithium and oxygen, wherein the metal has a composition M, wherein M consists of Ni in a content x, Mn in a content y, Co in a content z, and A in a content a, wherein x, y, z, and a are expressed as molar contents, wherein x+y+z+a=100%, wherein x?70.0%, wherein 0?y?30.0%, wherein 0?z?30.0%, wherein 0?a?2.0%, wherein an X-Ray diffractogram of the positive electrode active material has a (003) peak located at 2?=17.0° to 20.0° and (104) peak located at 2?=43.0° to 46.0°, wherein the ratio (maximum intensity of the (003) peak)/(maximum intensity of the (104) peak) is at least 1.530.

Abstract: A positive electrode active material for lithium-ion rechargeable batteries comprises particles having Li, M?, and oxygen. M? comprises Ni in a content x, wherein x?80 at %, relative to M?; Co in a content y, wherein 0.01?y?20.0 at %, relative to M?; Mn in a content z, wherein 0?z?20.0 at %, relative to M?; Y in a content b, wherein 0.01?b?2.0 at %, relative to M?; Zr in a content c, wherein 0.01?c?2.0 at %, relative to M?; D in a content a, wherein 0? a?5.0 at %, relative to M?. D is selected from B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, V, W, and Zn. The material comprises secondary particles, wherein each of the secondary particles consists of at least two primary particles and at most twenty primary particles.

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 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?.