Calcium vanadate film and its preparation method and application

Calcium vanadate film and its preparation method and application

  • CN 105,622,098 B
  • Filed: 01/08/2016
  • Issued: 11/12/2019
  • Est. Priority Date: 01/08/2016
  • Status: Active Grant
First Claim
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1. a kind of preparation method of lithium ion battery working electrode, the chemical composition of the working electrode is CaV6O16·

  • 3H2O,It is characterized in that, comprising the following steps;

    1. soluble calcium salt and sodium vanadate are configured to mixed solution by Ca;

    V molar ratio for 1;

    1 ~ 6;

    2. adjusting mixed solution pH value is 5.2 ~ 6.2, the mixed solution after adjusting pH value is transferred in hydrothermal reaction kettle, is sealed6 ~ 15 h of hydro-thermal reaction in 160 ~ 220 DEG C of insulating box is placed it in afterwards, obtains precipitating magma;

    3. by step, 2. resulting precipitating magma is cooled to room temperature, washs, presses slabbing, drying, obtains calcium vanadate film, the vanadiumThe section thickness of sour calcium film is 50 ~ 80 μ

    m;

    4. directly as working electrode after the calcium vanadate film is cut.

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