CN110590341A - 溶胶结合的锂电池正极材料烧结用匣钵及其制备方法 - Google Patents
溶胶结合的锂电池正极材料烧结用匣钵及其制备方法 Download PDFInfo
- Publication number
- CN110590341A CN110590341A CN201910932383.9A CN201910932383A CN110590341A CN 110590341 A CN110590341 A CN 110590341A CN 201910932383 A CN201910932383 A CN 201910932383A CN 110590341 A CN110590341 A CN 110590341A
- Authority
- CN
- China
- Prior art keywords
- sol
- sagger
- sintering
- lithium battery
- equal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 65
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000007774 positive electrode material Substances 0.000 title claims description 31
- 239000010431 corundum Substances 0.000 claims abstract description 49
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 47
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 28
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 23
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000010405 anode material Substances 0.000 claims abstract description 21
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 20
- 239000011029 spinel Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000004927 clay Substances 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 238000000498 ball milling Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- -1 magnesium aluminate Chemical class 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- 239000010406 cathode material Substances 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 9
- 230000003628 erosive effect Effects 0.000 abstract description 6
- 238000000748 compression moulding Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 229920001353 Dextrin Polymers 0.000 description 3
- 239000004375 Dextrin Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 235000019425 dextrin Nutrition 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000003232 water-soluble binding agent Substances 0.000 description 2
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明涉及一种溶胶结合的锂电池正极材料烧结用匣钵及其制备方法。其技术方案是:以20~25wt%的刚玉颗粒为骨料,以12~20wt%的刚玉细粉、20~25wt%的堇青石、20~25wt%的镁铝尖晶石、2~10wt%的硅微粉和5~10wt%的粘土为基质,所述骨料和所述基质称为原料。先将所述基质球磨1~3h,得到预混料;将所述骨料和占所述原料2~5wt%的莫来石溶胶搅拌均匀,得到预混骨料。然后将所述预混骨料加入所述预混料中,再加入占所述原料2~5wt%的莫来石溶胶,搅拌,机压成型,干燥,在1300℃~1400℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵。本发明工艺简单和生产周期短,所制制品烧结性能好、体积密度大、耐压强度高、抗热震性优良和抗侵蚀性能好。
Description
技术领域
本发明属于锂电池正极材料烧结用匣钵技术领域。具体涉及一种溶胶结合的锂电池正极材料烧结用匣钵及其制备方法。
背景技术
锂电池作为目前能量密度最高的电池受到广泛关注,使正极材料烧成用匣钵材料的需求也日益增大。锂电池正极材料及其烧结用匣钵的在工业上的生产方法也备受关注。
锂电池正极材料烧结用匣钵(以下简称匣钵)在承载正极材料的制备过程中,匣钵堆叠挤压,不断装料、搬运、脱模,容易遭到机械外力的破坏;匣钵在窑炉内反复进出,工作环境温度波动大,冷热交替造成匣钵表面开裂;同时正极材料中的含锂化合物具有极强的侵蚀性能,会和匣钵中的耐火材料发生反应,产生化学破坏,导致匣钵坯体产生剥落。这些苛刻的条件使匣钵的寿命往往仅有20余次,甚至在15次左右就会报废。目前用于锂电池正极材料烧结用匣钵普遍采用堇青石以提升抗热震性能,但堇青石的烧结温度低,与分解温度仅相差30℃,匣钵的烧结区间小将造成其他原料烧结困难;同时,匣钵的结合剂多采用糊精,糊精的优点虽简单易得,但烧失后留下的孔隙会为侵蚀物相提供通道,从而导致匣钵更易遭到侵蚀渗透,且采用糊精为结合剂需要12小时以上的困料,生产周期延长。
“一种锂电池正极材料用匣钵及其制备方法””(CN106278296A)专利技术,该技术以板状刚玉、堇青石、钛酸铝和α-氧化铝微粉为原料,以铝酸钙水泥为结合剂,高温烧成,制得锂离子电池正极材料烧结用匣钵。所制备的匣钵虽有良好的体积密度及力学强度,但铝酸钙水泥会在使用时形成低熔相,对匣钵制品的抗侵蚀性能造成大幅下降。
“一种低成本长寿命的陶瓷匣钵及其制备方法””(CN106946553A)专利技术,该技术以滑石、铝矾土、镁铝尖晶石以及堇青石为原料,水溶性粘结剂为结合剂,高温烧制得锂电池正极材料烧结用匣钵。所制备的匣钵虽有良好的力学强度以及抗侵蚀能力,但采用水溶性粘结剂为结合剂需要进行24~48h的困料,使得生产周期延长。
“一种新能源汽车电子陶瓷用烧结匣钵及其制作方法”(CN106630977A)专利技术,该技术以刚玉砂、高岭土、腐殖酸钠和二氧化锆为原料,通过干压成型后高温烧成。所制备的匣钵虽有较高的强度,但由于物相单一,使所制匣钵的热震性能较低。
发明内容
本发明旨在克服现有技术缺陷,目的是提供一种工艺简单和生产周期短的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,用该方法制备的溶胶结合的锂电池正极材料烧结用匣钵烧结性能好、耐压强度高、抗热震性优良和抗侵蚀性能好。
为实现上述目的,本发明采用的技术方案是:所述锂电池正极材料烧结用匣钵的原料及其含量是:刚玉颗粒为20~25wt%,刚玉细粉为12~20wt%,堇青石为20~25wt%,镁铝尖晶石为20~25wt%,硅微粉为2~10wt%,粘土为5~10wt%。
所述锂电池正极材料烧结用匣钵的制备方法是:
步骤一、将所述刚玉细粉、所述堇青石、所述镁铝尖晶石、所述硅微粉和所述粘土混合,球磨1~3h,得到预混料。
步骤二、将所述刚玉颗粒和占所述原料2~5wt%的莫来石溶胶搅拌均匀,得到预混骨料。
步骤三、将所述预混骨料加入所述预混料中,再加入占所述原料2~5wt%的莫来石溶胶,搅拌5~10分钟,得到混合料。
步骤四、将所述混合料在150~200MPa条件下机压成型,于90~120℃条件下干燥20~25h,在1300℃~1400℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵。
所述莫来石溶胶的制备方法。所述莫来石溶胶的原料及其含量是:硝酸铝为40~50wt%;无水乙醇为40-45wt%;硅酸四乙酯为8~12wt%;聚乙烯醇缩丁醛为2~5wt%。按所述莫来石溶胶的原料及其含量,先将所述硝酸铝溶解到所述无水乙醇中,得到硝酸铝溶液,再将所述硅酸四乙酯加入到所述硝酸铝溶液,搅拌0.5~2h,得到混合溶液;然后将所述聚乙烯醇缩丁醛加入所述混合溶中,调节pH值至8~11,在20~60℃的水浴条件下搅拌6~10h,得到莫来石溶胶。
所述刚玉为板状刚玉、电熔白刚玉和电熔棕刚玉中的一种以上,所述刚玉的Al2O3≥95.0wt%;所述刚玉颗粒的粒径大于1且小于等于3mm,刚玉细粉的粒径为0.044~1mm。
所述堇青石的化学成分为:Al2O3含量≥33.0wt%,SiO2含量≥50.0wt%,MgO含量≥13.0wt%;所述堇青石的粒径为0.044~1mm。
所述镁铝尖晶石的化学成分是:Al2O3含量≥72.0wt%,MgO含量≥25.0wt%;所述镁铝尖晶石的粒径为0.044~1mm。
所述硅微粉的SiO2含量≥95.0wt%,所述硅微粉的粒径≤0.088mm。
所述粘土的化学成分是:Al2O3含量≥35.0wt%,SiO2含量≥50.0wt%,K2O含量≤1.5wt%;所述粘土的粒径≤0.088mm。
所述硝酸铝为无水硝酸铝或为硝酸铝的水合物。
所述的聚乙烯醇缩丁醛为SD-1、SD-2、SD-3、SD-4、SD-5、SD-6和SD-7中的一种以上。
由于采用上述技术方案,本发明与现有技术相比具有以下优点:
1、本发明以莫来石溶胶作为结合剂,能在1100℃便形成莫来石相,促进匣钵烧结,提升了溶胶结合的锂电池正极材料烧结用匣钵的致密度,增提高匣钵的耐压强度。
2、本发明采用的莫来石溶胶在高温下能形成针柱状莫来石,使得在反复升降温过程中所形成的裂纹发生偏转或是桥接裂纹,能显著提升溶胶结合的锂电池正极材料烧结用匣钵的抗热震性能。
3、本发明采用的莫来石溶胶能在高温下形成的莫来石,莫来石具有良好的化学稳定性,同时能有有效的填补颗粒间的空隙,有效的阻止了正极材料对匣钵坯体的渗透,显著提升了溶胶结合的锂电池正极材料烧结用匣钵的抗侵蚀性能。
4、本发明所采用的莫来石溶胶符合标准牛顿流体的特性,在与物料高速搅拌时黏度低,能够均匀分散,在静止时黏度高,便于物料压制成型,无需困料等处理工艺,工艺简单和生产周期短。
本发明所制备的溶胶结合的锂电池正极材料烧结用匣钵经检测:体积密度为2.80~2.95g/cm3;抗折强度为8.5~12.0MPa;耐压强度为70.0~95.0MPa;1100℃水冷试验条件下热震后强度残余率为80.0~85.0%;1100℃动态坩埚法抗渣实验侵蚀率为1.0~5.0%。
因此,本发明具有工艺简单和生产周期短的特点;所制备的溶胶结合的锂电池正极材料烧结用匣钵烧结性能好、体积密度大、耐压强度高、抗热震性优良和抗侵蚀性能好。
具体实施方式
下面结合具体实施方式对本发明作进一步的描述,并非对其保护范围的限制。
为避免重复,先将本具体实施方式所涉及的物料统一描述如下,实施例中不再赘述:
所述莫来石溶胶的制备方法。所述莫来石溶胶的原料及其含量是:硝酸铝为40~50wt%;无水乙醇为40-45wt%;硅酸四乙酯为8~12wt%;聚乙烯醇缩丁醛为2~5wt%。按所述莫来石溶胶的原料及其含量,先将所述硝酸铝溶解到所述无水乙醇中,得到硝酸铝溶液,再将所述硅酸四乙酯加入到所述硝酸铝溶液,搅拌0.5~2h,得到混合溶液;然后将所述聚乙烯醇缩丁醛加入所述混合溶中,调节pH值至8~11,在20~60℃的水浴条件下搅拌6~10h,得到莫来石溶胶。
所述刚玉为板状刚玉、电熔白刚玉和电熔棕刚玉中的一种以上,所述刚玉的Al2O3≥95.0wt%;所述刚玉颗粒的粒径大于1且小于等于3mm,刚玉细粉的粒径为0.044~1mm。
所述堇青石的化学成分为:Al2O3含量≥33.0wt%,SiO2含量≥50.0wt%,MgO含量≥13.0wt%;所述堇青石的粒径为0.044~1mm。
所述镁铝尖晶石的化学成分是:Al2O3含量≥72.0wt%,MgO含量≥25.0wt%;所述镁铝尖晶石的粒径为0.044~1mm。
所述硅微粉的SiO2含量≥95.0wt%,所述硅微粉的粒径≤0.088mm。
所述粘土的化学成分是:Al2O3含量≥35.0wt%,SiO2含量≥50.0wt%,K2O含量≤1.5wt%;所述粘土的粒径≤0.088mm。
所述硝酸铝为无水硝酸铝或为硝酸铝的水合物。
所述的聚乙烯醇缩丁醛为SD-1、SD-2、SD-3、SD-4、SD-5、SD-6和SD-7中的一种以上。
实施例1
一种溶胶结合的锂电池正极材料烧结用匣钵及其制备方法。
所述锂电池正极材料烧结用匣钵的原料及其含量是:刚玉颗粒为20~21wt%,刚玉细粉为18~20wt%,堇青石为23~25wt%,镁铝尖晶石为23~25wt%,硅微粉为2~4wt%,粘土为5~7wt%。
所述锂电池正极材料烧结用匣钵的制备方法是:
步骤一、将所述刚玉细粉、所述堇青石、所述镁铝尖晶石、所述硅微粉和所述粘土混合,球磨1~3h,得到预混料。
步骤二、将所述刚玉颗粒和占所述原料2~3.5wt%的莫来石溶胶搅拌均匀,得到预混骨料。
步骤三、将所述预混骨料加入所述预混料中,再加入占所述原料2~3.5wt%的莫来石溶胶,搅拌5~10分钟,得到混合料。
步骤四、将所述混合料在150~170MPa条件下机压成型,于90~120℃条件下干燥20~25h,在1300℃~1340℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵。
实施例2
一种溶胶结合的锂电池正极材料烧结用匣钵及其制备方法。
所述锂电池正极材料烧结用匣钵的原料及其含量是:刚玉颗粒为21~23wt%,刚玉细粉为16~18wt%,堇青石为22~24wt%,镁铝尖晶石为22~24wt%,硅微粉为4~6wt%,粘土为6~8wt%。
所述锂电池正极材料烧结用匣钵的制备方法是:
步骤一、将所述刚玉细粉、所述堇青石、所述镁铝尖晶石、所述硅微粉和所述粘土混合,球磨1~3h,得到预混料。
步骤二、将所述刚玉颗粒和占所述原料2.5~4wt%的莫来石溶胶搅拌均匀,得到预混骨料。
步骤三、将所述预混骨料加入所述预混料中,再加入占所述原料2.5~4wt%的莫来石溶胶,搅拌5~10分钟,得到混合料。
步骤四、将所述混合料在160~180MPa条件下机压成型,于90~120℃条件下干燥20~25h,在1320℃~1360℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵。
实施例3
一种溶胶结合的锂电池正极材料烧结用匣钵及其制备方法。
所述锂电池正极材料烧结用匣钵的原料及其含量是:刚玉颗粒为23~24wt%,刚玉细粉为14~16wt%,堇青石为21~23wt%,镁铝尖晶石为21~23wt%,硅微粉为6~8wt%,粘土为7~9wt%。
所述锂电池正极材料烧结用匣钵的制备方法是:
步骤一、将所述刚玉细粉、所述堇青石、所述镁铝尖晶石、所述硅微粉和所述粘土混合,球磨1~3h,得到预混料。
步骤二、将所述刚玉颗粒和占所述原料3~4.5wt%的莫来石溶胶搅拌均匀,得到预混骨料。
步骤三、将所述预混骨料加入所述预混料中,再加入占所述原料3~4.5wt%的莫来石溶胶,搅拌5~10分钟,得到混合料。
步骤四、将所述混合料在170~190MPa条件下机压成型,于90~120℃条件下干燥20~25h,在1340℃~1380℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵。
实施例4
一种溶胶结合的锂电池正极材料烧结用匣钵及其制备方法。
所述锂电池正极材料烧结用匣钵的原料及其含量是:刚玉颗粒为24~25wt%,刚玉细粉为12~14wt%,堇青石为20~22wt%,镁铝尖晶石为20~22wt%,硅微粉为8~10wt%,粘土为8~10wt%。
所述锂电池正极材料烧结用匣钵的制备方法是:
步骤一、将所述刚玉细粉、所述堇青石、所述镁铝尖晶石、所述硅微粉和所述粘土混合,球磨1~3h,得到预混料。
步骤二、将所述刚玉颗粒和占所述原料3.5~5wt%的莫来石溶胶搅拌均匀,得到预混骨料。
步骤三、将所述预混骨料加入所述预混料中,再加入占所述原料3.5~5wt%的莫来石溶胶,搅拌5~10分钟,得到混合料。
步骤四、将所述混合料在180~200MPa条件下机压成型,于90~120℃条件下干燥20~25h,在1360℃~1400℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵。
本具体实施方式与现有技术相比具有以下优点:
1、本具体实施方式以莫来石溶胶作为结合剂,能在1100℃便形成莫来石相,促进匣钵烧结,提升了锂电池正极材料烧结用匣钵的致密度,增提高匣钵的耐压强度。
2、本具体实施方式采用的莫来石溶胶在高温下能形成针柱状莫来石,使得在反复升降温过程中所形成的裂纹发生偏转或是桥接裂纹,能显著提升匣钵的抗热震性能。
3、本具体实施方式采用的莫来石溶胶能在高温下形成的莫来石,莫来石具有良好的化学稳定性,同时能有有效的填补颗粒间的空隙,有效的阻止了正极材料对匣钵坯体的渗透,显著提升了匣钵的抗侵蚀性能。
4、本具体实施方式所采用的莫来石溶胶符合标准牛顿流体的特性,在与物料高速搅拌时黏度低,能够均匀分散,在静止时黏度高,便于物料压制成型,无需困料等处理工艺,工艺简单和生产周期短。
5、本具体实施方式所制备的溶胶结合的锂电池正极材料烧结用匣钵经检测:体积密度为2.80~2.95g/cm3;抗折强度为8.5~12.0MPa;耐压强度为70.0~95.0MPa;1100℃水冷试验条件下热震后强度残余率为80.0~85.0%;1100℃动态坩埚法抗渣实验侵蚀率为1.0~5.0%。
因此,本具体实施方式具有工艺简单和生产周期短的特点;所制备的溶胶结合的锂电池正极材料烧结用匣钵烧结性能好、体积密度大、耐压强度高、抗热震性优良和抗侵蚀性能好。
Claims (9)
1.一种溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于:
所述锂电池正极材料烧结用匣钵的原料及其含量是:刚玉颗粒为20~25wt%,刚玉细粉为12~20wt%,堇青石为20~25wt%,镁铝尖晶石为20~25wt%,硅微粉为2~10wt%,粘土为5~10wt%;
所述锂电池正极材料烧结用匣钵的制备方法是:
步骤一、将所述刚玉细粉、所述堇青石、所述镁铝尖晶石、所述硅微粉和所述粘土混合,球磨1~3h,得到预混料;
步骤二、将所述刚玉颗粒和占所述原料2~5wt%的莫来石溶胶搅拌均匀,得到预混骨料;
步骤三、将所述预混骨料加入所述预混料中,再加入占所述原料2~5wt%的莫来石溶胶,搅拌5~10分钟,得到混合料;
步骤四、将所述混合料在150~200MPa条件下机压成型,于90~120℃条件下干燥20~25h,在1300℃~1400℃条件下保温2~4h,制得溶胶结合的锂电池正极材料烧结用匣钵;
所述莫来石溶胶的制备方法是:
所述莫来石溶胶的原料及其含量是:硝酸铝为40~50wt%,无水乙醇为40-45wt%,硅酸四乙酯为8~12wt%,聚乙烯醇缩丁醛为2~5wt%;
按所述莫来石溶胶的原料及其含量,先将所述硝酸铝溶解到所述无水乙醇中,得到硝酸铝溶液,再将所述硅酸四乙酯加入到所述硝酸铝溶液,搅拌0.5~2h,得到混合溶液;然后将所述聚乙烯醇缩丁醛加入所述混合溶中,调节pH值至8~11,在20~60℃的水浴条件下搅拌6~10h,得到莫来石溶胶。
2.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述刚玉为板状刚玉、电熔白刚玉和电熔棕刚玉中的一种以上,所述刚玉的Al2O3≥95.0wt%;所述刚玉颗粒的粒径大于1且小于等于3mm,刚玉细粉的粒径为0.044~1mm。
3.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述堇青石的化学成分为:Al2O3含量≥33.0wt%,SiO2含量≥50.0wt%,MgO含量≥13.0wt%;所述堇青石的粒径为0.044~1mm。
4.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述镁铝尖晶石的化学成分是:Al2O3含量≥72.0wt%,MgO含量≥25.0wt%;所述镁铝尖晶石的粒径为0.044~1mm。
5.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述硅微粉的SiO2含量≥95.0wt%,所述硅微粉的粒径≤0.088mm。
6.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述粘土的化学成分是:Al2O3含量≥35.0wt%,SiO2含量≥50.0wt%,K2O含量≤1.5wt%;所述粘土的粒径≤0.088mm。
7.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述硝酸铝为无水硝酸铝或为硝酸铝的水合物。
8.根据权利要求1所述的溶胶结合的锂电池正极材料烧结用匣钵的制备方法,其特征在于所述的聚乙烯醇缩丁醛为SD-1、SD-2、SD-3、SD-4、SD-5、SD-6以及SD-7中的一种以上。
9.一种溶胶结合的锂电池正极材料烧结用匣钵,其特征在于所述溶胶结合的锂电池正极材料烧结用匣钵是根据权利要求1~8项中任一项所述溶胶结合的锂电池正极材料烧结用匣钵的制备方法所制备的溶胶结合的锂电池正极材料烧结用匣钵。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910932383.9A CN110590341B (zh) | 2019-09-29 | 2019-09-29 | 溶胶结合的锂电池正极材料烧结用匣钵及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910932383.9A CN110590341B (zh) | 2019-09-29 | 2019-09-29 | 溶胶结合的锂电池正极材料烧结用匣钵及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110590341A true CN110590341A (zh) | 2019-12-20 |
CN110590341B CN110590341B (zh) | 2022-04-29 |
Family
ID=68864569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910932383.9A Active CN110590341B (zh) | 2019-09-29 | 2019-09-29 | 溶胶结合的锂电池正极材料烧结用匣钵及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110590341B (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111269019A (zh) * | 2020-03-14 | 2020-06-12 | 苏州市伊贝高温技术材料有限公司 | 一种超高温环境使用烧结无污染承烧板及其制备方法 |
CN111423241A (zh) * | 2020-03-31 | 2020-07-17 | 中冶焦耐(大连)工程技术有限公司 | 一种具有纤维增韧的莫来石砖及其制备方法 |
CN112979294A (zh) * | 2021-03-17 | 2021-06-18 | 中南大学 | 一种废旧匣钵修复涂料及其使用方法 |
CN113480300A (zh) * | 2021-07-13 | 2021-10-08 | 武汉科技大学 | 一种莫来石质复合匣钵及其制备方法 |
CN114394841A (zh) * | 2022-01-11 | 2022-04-26 | 江苏蓝固新能源科技有限公司 | 锂电材料烧结用匣钵及其制备方法 |
CN115231933A (zh) * | 2022-07-29 | 2022-10-25 | 湖南荣晟昌新材料科技有限公司 | 一种镁质强耐腐蚀性耐火材料及其制备方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115043650B (zh) | 2022-08-15 | 2022-11-15 | 天津巴莫科技有限责任公司 | 一种匣钵及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1810722A (zh) * | 2006-01-10 | 2006-08-02 | 南京航空航天大学 | 一种莫来石陶瓷低温烧结方法 |
CN104529421A (zh) * | 2014-12-08 | 2015-04-22 | 武汉理工大学 | 一种细晶莫来石陶瓷的制备方法 |
CN105384450A (zh) * | 2015-11-10 | 2016-03-09 | 安吉科灵磁性材料有限公司 | 硅铝溶胶增强碳化硅窑具的生产方法 |
CN107619286A (zh) * | 2017-09-13 | 2018-01-23 | 浙江招通高温材料有限公司 | 一种刚玉莫来石匣钵的制备方法 |
CN109761593A (zh) * | 2019-03-13 | 2019-05-17 | 武汉科技大学 | 一种以铝溶胶为结合剂的锂电池正极材料烧结用匣钵及其制备方法 |
-
2019
- 2019-09-29 CN CN201910932383.9A patent/CN110590341B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1810722A (zh) * | 2006-01-10 | 2006-08-02 | 南京航空航天大学 | 一种莫来石陶瓷低温烧结方法 |
CN104529421A (zh) * | 2014-12-08 | 2015-04-22 | 武汉理工大学 | 一种细晶莫来石陶瓷的制备方法 |
CN105384450A (zh) * | 2015-11-10 | 2016-03-09 | 安吉科灵磁性材料有限公司 | 硅铝溶胶增强碳化硅窑具的生产方法 |
CN107619286A (zh) * | 2017-09-13 | 2018-01-23 | 浙江招通高温材料有限公司 | 一种刚玉莫来石匣钵的制备方法 |
CN109761593A (zh) * | 2019-03-13 | 2019-05-17 | 武汉科技大学 | 一种以铝溶胶为结合剂的锂电池正极材料烧结用匣钵及其制备方法 |
Non-Patent Citations (1)
Title |
---|
姚素梅主编: "《基础化学》", 31 August 2017, 海洋出版社 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111269019A (zh) * | 2020-03-14 | 2020-06-12 | 苏州市伊贝高温技术材料有限公司 | 一种超高温环境使用烧结无污染承烧板及其制备方法 |
CN111269019B (zh) * | 2020-03-14 | 2022-04-29 | 苏州市伊贝高温技术材料有限公司 | 一种超高温环境使用烧结无污染承烧板及其制备方法 |
CN111423241A (zh) * | 2020-03-31 | 2020-07-17 | 中冶焦耐(大连)工程技术有限公司 | 一种具有纤维增韧的莫来石砖及其制备方法 |
CN112979294A (zh) * | 2021-03-17 | 2021-06-18 | 中南大学 | 一种废旧匣钵修复涂料及其使用方法 |
CN112979294B (zh) * | 2021-03-17 | 2022-05-06 | 中南大学 | 一种废旧匣钵修复涂料及其使用方法 |
CN113480300A (zh) * | 2021-07-13 | 2021-10-08 | 武汉科技大学 | 一种莫来石质复合匣钵及其制备方法 |
CN113480300B (zh) * | 2021-07-13 | 2023-07-21 | 武汉科技大学 | 一种莫来石质复合匣钵及其制备方法 |
CN114394841A (zh) * | 2022-01-11 | 2022-04-26 | 江苏蓝固新能源科技有限公司 | 锂电材料烧结用匣钵及其制备方法 |
CN115231933A (zh) * | 2022-07-29 | 2022-10-25 | 湖南荣晟昌新材料科技有限公司 | 一种镁质强耐腐蚀性耐火材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN110590341B (zh) | 2022-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110590341B (zh) | 溶胶结合的锂电池正极材料烧结用匣钵及其制备方法 | |
CN101423414B (zh) | 一种高温抗蠕变刚玉—莫来石承烧板及其制备方法 | |
CN111620679B (zh) | 一种以熔融二氧化硅为硅源制备高纯莫来石材料的方法 | |
CN103755361A (zh) | 一种铝铬硅质耐火材料 | |
CN108610024B (zh) | 一种用于锂离子电池正极材料焙烧的匣钵及其制备方法 | |
CN113354423A (zh) | 一种碳复合耐火材料配方及制备方法 | |
CN111635222A (zh) | 一种基于单斜相的低介微波介质陶瓷材料及其制备方法 | |
CN110981446A (zh) | 一种体积稳定型高温台板及制造方法 | |
CN113845361A (zh) | 一种高性能碱性特种陶瓷及其制备方法 | |
CN111943642B (zh) | 一种高强度发泡陶瓷及其制备方法 | |
CN115304384A (zh) | 一种防返碱铝硅系浇注料及其制备方法 | |
CN113968724A (zh) | 一种金属改性镁砂、低碳转炉镁质滑板及它们的制备方法 | |
CN106396704B (zh) | 一种富镁不定形耐火材料及其制备方法 | |
CN107556009B (zh) | 耐火砖及其制备方法 | |
CN116573944B (zh) | 硅线石耐火材料及其制备方法和硅线石砖 | |
CN115353372B (zh) | 一种锂电正极材料烧结用匣钵及其制备方法 | |
KR20130051290A (ko) | 이차전지의 양극소재 소성을 위한 요도구용 조성물 및 요도구 | |
CN108285350B (zh) | 一种三元复合碳化硅质耐火材料及其制备方法 | |
CN107417287B (zh) | 一种微波冶金窑车用刚玉-氧氮化硅复合耐火材料 | |
CN112759377B (zh) | 一种锂电池正极材料焙烧用匣钵及其制备方法 | |
CN112939589B (zh) | 一种抗热震性陶质砖及其制备方法 | |
CN112979286B (zh) | 用于高密度封装外壳的氧化铝陶瓷、其制备方法及生瓷带 | |
CN112094127B (zh) | 一种蓝晶石尾矿系列匣钵的制作工艺 | |
CN118561586B (zh) | 一种掺钛防渗抗蚀铝锆耐火材料及其制备方法 | |
CN112679151B (zh) | 一种机压免烧粘土砖及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |