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公开(公告)号：EP3940825A1
公开(公告)日：2022-01-19
申请号：EP21162093.5
申请日：2021-03-11
发明人： TANAKA, Shinichi , NOZOE, Tsutomu
IPC分类号： H01M4/36 , H01M4/58 , H01M4/62 , H01M10/052
摘要： A metal adsorbent-carrying carbon material includes: a carbon material; and a metal adsorbent that is supported on the carbon material.
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公开(公告)号：EP3534439A1
公开(公告)日：2019-09-04
申请号：EP18197086.4
申请日：2018-09-27
发明人： NOZOE, Tsutomu , YAMAYA, Ryuuta
IPC分类号： H01M4/1391 , H01M4/36 , H01M4/58 , H01M4/583 , H01M10/052 , H01M4/62 , H01M4/02
摘要： [Task] To provide an electrode material for a lithium ion secondary battery satisfying both electron conductivity and lithium diffusivity, an electrode in which the electrode material for a lithium ion secondary battery is used, and a lithium ion secondary battery in which the electrode is used.
[Means for Resolution] An electrode material for a lithium ion secondary battery including a carbonaceous coated electrode active material having primary particles of an electrode active material, secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which a ratio A/B of an average primary particle diameter A (nm) that is estimated from a specific surface area of the carbonaceous coated electrode active material obtained by a BET method to a crystallite diameter B (nm) of the electrode active material is 1 or more and 2.5 or less.-
公开(公告)号：EP3978441A1
公开(公告)日：2022-04-06
申请号：EP21164159.2
申请日：2021-03-23
发明人： NOZOE, Tsutomu , NAKANO, Toyomasa
IPC分类号： C01G49/00 , H01M4/1397 , H01M4/36 , H01M4/58 , H01M4/62 , H01M4/02 , H01M10/0525
摘要： A positive electrode material for lithium ion secondary batteries is provided, wherein a ratio (A/B) of an oil absorption amount (A) of powder per unit mass of the material, which is measured using N-methyl-2-pyrrolidone, to a void volume (B) of powder per unit mass of the material is 0.30 or more and 0.85 or less, and a ratio (C/D) of a powder density (C) of the material, which is measured in a powder pressure test at a pressure of 4.5 MPa, to an initial powder density (D) of the material is 1.3 or more and 1.7 or less.
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公开(公告)号：EP3890068A1
公开(公告)日：2021-10-06
申请号：EP20198084.4
申请日：2020-09-24
发明人： NOZOE, Tsutomu , NAKANO, Toyomasa
摘要： A positive electrode material for a lithium ion secondary battery containing carbon, in which, when a peak of the carbon that is measured by Raman scattering and is present at 2200 to 3400 cm -1 is peak-separated into peaks including five types of Voigt functions of a peak 1 having a peak top present at 2200 to 2380 cm -1 , a peak 2 having a peak top present at 2400 to 2550 cm -1 , a peak 3 having a peak top present at 2600 to 2750 cm -1 , a peak 4 having a peak top present at 2850 to 2950 cm -1 , and a peak 5 having a peak top present at 3100 to 3250 cm -1 , an average of proportions of Gaussian functions in the peak 3 and the peak 4 is 90% or more and less than 100%.
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公开(公告)号：EP3799160A1
公开(公告)日：2021-03-31
申请号：EP20161840.2
申请日：2020-03-09
发明人： NOZOE, Tsutomu , NAKANO, Toyomasa
IPC分类号： H01M4/136 , H01M4/36 , H01M4/58 , H01M10/0525
摘要： A positive electrode material for a lithium ion secondary battery capable of obtaining a lithium ion secondary battery having a high discharge capacity and excellent cycle characteristics, a positive electrode for a lithium ion secondary battery using the positive electrode material, and a lithium ion secondary battery having the positive electrode are provided.
Provided is the positive electrode material for a lithium ion secondary battery, including core particles and a carbonaceous film coating a surface of the core particles, in which in a Raman spectrum analysis of the carbonaceous film, in a case where a peak intensity of a spectrum in a wave number band of 1,200 to 1,400 cm -1 is set as D, a minimum intensity of 1,400 to 1,550 cm -1 is set as V, and a peak intensity of the spectrum of 1,550 to 1,700 cm -1 is set as G, an average D/G is 0.77 or more and 0.98 or less and an average V/G is 0.50 or more and 0.66 or less, and each of variation coefficients of D/G and V/G is 2% or less.-
6.发明公开
公开(公告)号：EP3706217A1
公开(公告)日：2020-09-09
申请号：EP19195344.7
申请日：2019-09-04
发明人： OONO, Kouji , OSHITARI, Satoru , NOZOE, Tsutomu , OYAMA, Masataka
IPC分类号： H01M4/62 , H01M4/36 , H01M4/58 , H01M4/1397 , H01M4/136 , H01M10/0525
摘要： An electrode material including a carbonaceous-coated electrode active material having primary particles of the electrode active material and secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which a specific surface area, which is obtained using a nitrogen adsorption method, is 4 m 2 /g or more and 40 m 2 /g or less, a volume of micropores per unit mass is 0.05 cm 3 /g or more and 0.3 cm 3 /g or less, and an average micropore diameter, which is obtained from the volume of the micropores per unit mass and the specific surface area, is 26 nm or more and 90 nm or less.
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公开(公告)号：EP3883019A1
公开(公告)日：2021-09-22
申请号：EP20198079.4
申请日：2020-09-24
发明人： OSHITARI, Satoru , OONO, Kouji , NOZOE, Tsutomu
IPC分类号： H01M4/1397 , H01M4/36 , H01M4/58 , H01M4/02 , H01M10/052
摘要： A positive electrode material for a lithium ion secondary battery includes an olivine-type phosphate-based compound represented by General Formula LixAyDzPO 4 and carbon, and, in transmission electron microscopic observation of a cross section of a secondary particle that is an agglomerate of primary particles of the olivine-type phosphate-based compound, a 300-point average value of filling rates of the carbon that fills insides of voids having a diameter of 5 nm or larger that are formed by the primary particles is 30 to 70%. A is any one of Co, Mn, Ni, Fe, Cu, and Cr, D is any one of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y, and x, y, and z satisfy 0.9
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公开(公告)号：EP3799159A1
公开(公告)日：2021-03-31
申请号：EP20161805.5
申请日：2020-03-09
发明人： NOZOE, Tsutomu , NAKANO, Toyomasa
IPC分类号： H01M4/136 , H01M4/36 , H01M4/58 , H01M10/0525
摘要： A positive electrode material for a lithium ion secondary battery capable of obtaining a lithium ion secondary battery having a high discharge capacity and excellent cycle characteristics, a positive electrode for a lithium ion secondary battery using the positive electrode material, and a lithium ion secondary battery having the positive electrode are provided.
Provided is the positive electrode material for a lithium ion secondary battery, including core particles and a carbonaceous film coating a surface of the core particles, in which in a Raman spectrum analysis of the carbonaceous film, in a case where a peak intensity of a spectrum in a wave number band of 1,200 to 1,400 cm -1 is set as D, a minimum intensity of 1,400 to 1,550 cm -1 is set as V, and a peak intensity of the spectrum of 1,550 to 1,700 cm -1 is set as G, an average D/G is 0.77 or more and 0.98 or less and an average V/G is 0.50 or more and 0.66 or less, and in a case where the average D/G is set as a and the average V/ G is set as b, X falls within a range of -0.1 ≤ X ≤ 0.1 in Expression X = a - 1.47b.-
公开(公告)号：EP3716368A1
公开(公告)日：2020-09-30
申请号：EP19200132.9
申请日：2019-09-27
发明人： NOZOE, Tsutomu , NAKANO, Toyomasa
IPC分类号： H01M4/136 , H01M4/36 , H01M4/58 , H01M4/62 , H01M10/0525
摘要： A positive electrode material for lithium-ion secondary batteries, wherein the positive electrode material includes a carbon-coatedpositive electrode active material which comprises primary particles, secondary particles, and a carbon film, wherein the primary particles and the secondary particles are coated with the carbon film, wherein the primary particles consists of a positive electrode active material in which a strain of the positive electrode active material, which is calculated by X-ray diffraction measurement, is 0.01% or higher and 0.1% or lower, and a ratio (B/A) of a crystallite diameter B (nm) of the positive electrode active material to an average primary particle diameter A (nm) of the carbon-coated positive electrode active material is 0.9 or higher and 1.5 or lower, wherein the particle diameter A is calculated from a specific surface area of the carbon-coated positive electrode active material, wherein the specific surface area is obtained using a BET method.
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10.发明公开
公开(公告)号：EP3614466A1
公开(公告)日：2020-02-26
申请号：EP19158281.6
申请日：2019-02-20
发明人： YAMAYA, Ryuuta , NOZOE, Tsutomu
摘要： A cathode material for a lithium ion secondary battery including agglomerated particles formed by agglomeration of a plurality of primary particles of a cathode active material represented by General Formula (1) which are coated with a carbonaceous film,
in which an amount of carbon per a crystallite diameter of the cathode active material is 0.008% by mass/nm or more and 0.050% by mass/nm or less, and a peak intensity ratio (I D /I G ) between a D band and a G band in a Raman spectrum obtained by Raman spectrometry is 0.85 or more and 1.15 or less.
Li x AyD z PO 4 (1)
(Here, A represents at least one element selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, D represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y, 0.9
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