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The invention discloses a lithium absorption prevention sagger for sintering a lithium cobalt oxide positive electrode and a preparation method of the lithium absorption prevention sagger. The preparation method comprises the following specific steps: S1, mixing a potassium fluozirconate solution and amorphous alumina to obtain a premix; s2, carrying out heat treatment on the premix, cooling along with a furnace, and grinding to obtain a pre-sintered material; s3, mixing calcium hexaluminate particles, the pre-sintered material, fused magnesia fine powder, rare earth composite yttrium zirconium ceramic powder and calcium dialuminate fine powder to obtain a mixture; s4, adding a calcium lignosulphonate solution into the mixture, and stirring to obtain a green body material; s5, the green body material is subjected to pouring, vibration forming, curing, demolding and drying, and a sagger green body is obtained; and S6, carrying out heat treatment on the sagger green body, and carrying out furnace cooling to room temperature, so as to obtain the lithium absorption prevention sagger for sintering the lithium cobalt oxide positive electrode. The process is simple, and the prepared lithium absorption prevention sagger for sintering the lithium cobalt oxide positive electrode is good in sintering performance, high in strength, high in resistance to erosion and permeability of lithium and cobalt components, high in thermal shock stability and small in specific gravity.
本发明公开了一种钴酸锂正极烧结用防吸锂匣钵及其制备方法。制备方法具体步骤如下：S1.将氟锆酸钾溶液和无定形氧化铝混合得预混合料；S2.将所述预混合料进行热处理，随炉冷却后研磨得预烧料；S3.将六铝酸钙颗粒、预烧料、电熔镁砂细粉、稀土复合钇锆陶瓷粉和二铝酸钙细粉混合得混合料；S4.向所述混合料中加入木质素磺酸钙溶液搅拌得到坯体料；S5.将坯体料浇注振动成型、养护、脱模、干燥得匣钵生坯；S6.将匣钵生坯热处理后，随炉冷却至室温，即得钴酸锂正极烧结用防吸锂匣钵。本发明工艺简单，所制备的钴酸锂正极烧结用防吸锂匣钵烧结性能好，强度大，抵抗锂钴组分的侵蚀渗透性强，热震稳定性高，比重小。
The invention discloses a lithium absorption prevention sagger for sintering a lithium cobalt oxide positive electrode and a preparation method of the lithium absorption prevention sagger. The preparation method comprises the following specific steps: S1, mixing a potassium fluozirconate solution and amorphous alumina to obtain a premix; s2, carrying out heat treatment on the premix, cooling along with a furnace, and grinding to obtain a pre-sintered material; s3, mixing calcium hexaluminate particles, the pre-sintered material, fused magnesia fine powder, rare earth composite yttrium zirconium ceramic powder and calcium dialuminate fine powder to obtain a mixture; s4, adding a calcium lignosulphonate solution into the mixture, and stirring to obtain a green body material; s5, the green body material is subjected to pouring, vibration forming, curing, demolding and drying, and a sagger green body is obtained; and S6, carrying out heat treatment on the sagger green body, and carrying out furnace cooling to room temperature, so as to obtain the lithium absorption prevention sagger for sintering the lithium cobalt oxide positive electrode. The process is simple, and the prepared lithium absorption prevention sagger for sintering the lithium cobalt oxide positive electrode is good in sintering performance, high in strength, high in resistance to erosion and permeability of lithium and cobalt components, high in thermal shock stability and small in specific gravity.
本发明公开了一种钴酸锂正极烧结用防吸锂匣钵及其制备方法。制备方法具体步骤如下：S1.将氟锆酸钾溶液和无定形氧化铝混合得预混合料；S2.将所述预混合料进行热处理，随炉冷却后研磨得预烧料；S3.将六铝酸钙颗粒、预烧料、电熔镁砂细粉、稀土复合钇锆陶瓷粉和二铝酸钙细粉混合得混合料；S4.向所述混合料中加入木质素磺酸钙溶液搅拌得到坯体料；S5.将坯体料浇注振动成型、养护、脱模、干燥得匣钵生坯；S6.将匣钵生坯热处理后，随炉冷却至室温，即得钴酸锂正极烧结用防吸锂匣钵。本发明工艺简单，所制备的钴酸锂正极烧结用防吸锂匣钵烧结性能好，强度大，抵抗锂钴组分的侵蚀渗透性强，热震稳定性高，比重小。
Lithium absorption prevention sagger for sintering lithium cobalt oxide positive electrode and preparation method of lithium absorption prevention sagger
一种钴酸锂正极烧结用防吸锂匣钵及其制备方法
FENG BO (author)
2024-06-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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