CAS: 14434-22-1; Sodium Ferrocyanide Decahydrate

专利信息

专利号:US-9546097-B2
优先权日:2012-03-28
标题 :Method for the synthesis of iron hexacyanoferrate
发明人：VAIL SEAN; LU YUHAO; LEE JONG-JAN
权利人:SHARP LABORATORIES AMERICA INC
摘要:A method is provided for synthesizing iron hexacyanoferrate (FeHCF). The method forms a first solution of a ferrocyanide source [A 4 Fe(CN) 6 .P H 2 O] material dissolved in a first solvent, where “Aâ€? is an alkali metal ion. A second solution is formed of a Fe(II) source dissolved in a second solvent. A reducing agent is added and, optionally, an alkali metal salt. The first and second solutions may be purged with an inert gas. The second solution is combined with the first solution to form a third solution in a low oxygen environment. The third solution is agitated in a low oxygen environment, and A X+1 Fe 2 (CN) 6 .Z H 2 O is formed, where X is in the range of 0 to 1. The method isolates the A X+1 Fe 2 (CN) 6 .Z H 2 O from the third solution, and dries the A X+1 Fe 2 (CN) 6 .Z H 2 O under vacuum at a temperature greater than 60 degrees C.

专利号:WO-2023184508-A1
优先权日:2022-04-01
标题:Carbon/berlin blue-like composite material and preparation method therefor and use thereof
发明人：TANG YONGBING; ZHAO ZHENYU; Zhang Luojiang; ZHANG XIAOMING
权利人:SHENZHEN INST ADV TECH; SHENZHEN INST OF ADV TECH CAS
摘要:The present application relates to the technical field of batteries, and in particular to a carbon/Berlin blue-like composite material and a preparation method therefor and use thereof. The preparation method comprises the following steps: preparing a carbon material, a chelating agent and a transition metal salt into a first mixture dispersion liquid, and carrying out a first hydrothermal reaction to obtain a carbon-transition metal composite precursor; and preparing alkali metal-ferrocyanide and the carbon-transition metal composite precursor into a second mixture dispersion liquid, carrying out a second hydrothermal reaction, and carrying out post-treatment to obtain the carbon/Berlin blue-like composite material. According to the preparation method, by means of a hydrothermal method, a solid-phase precursor is firstly synthesized. The rate of the carbon-transition metal composite precursor in the conversion process is relatively low, facilitating the slow formation of Berlin blue-like crystal lattices, and reducing the structural defects of ferrocyanide vacancy and crystal water easily occurring in the Berlin blue-like synthesis process. Meanwhile, the carbon material is provided for uniform compounding, so that the electrical conductivity is improved, the cycle performance and the stability are improved, and the method is suitable for large-scale production.

专利号:US-10135068-B2
优先权日:2012-03-09
标 题 :Cathode active material for sodium secondary battery and method for manufacturing the cathode active material for sodium secondary battery
发明人：HONMA TSUYOSHI; KOMATSU TAKAYUKI; IKEJIRI Junichi; YAMAUCHI HIDEO
权利人:NIPPON ELECTRIC GLASS CO
摘要:Provided are a cathode active material for a sodium ion secondary battery that is excellent in alkali ion diffusivity, structural stability, and cycle performance, and a synthesis method therefor. The cathode active material for a sodium ion secondary battery includes a melt-solidified body or oxide glass represented by the general formula NaxMyP2O7 (where M represents at least one or more kinds of transition metal elements selected from Cr, Fe, Mn, Co, and Ni, x satisfies a relationship of 1.20≤x≤2.10, and y satisfies a relationship of 0.95≤y≤1.60).

专利号:CN-110697796-B
优先权日:2019-10-09
标 题 :A green and efficient synthesis method of transition metal oxyhydroxide ultrathin nanosheets

专利号:CN-110697796-A
优先权日:2019-10-09
标题:A green and efficient synthesis method of transition metal oxyhydroxide ultrathin nanosheets