Modified method for lithium ion cell negative electrode material

Modified method for lithium ion cell negative electrode material

  • CN 100,511,775 C
  • Filed: 01/26/2005
  • Issued: 07/08/2009
  • Est. Priority Date: 01/26/2005
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of modified method for lithium ion cell negative electrode material, it is characterized in that:

  • needs modification negative material is added catalyst evenly mix, the percentage by weight that catalyst accounts for the modification negative material is 0.1%-10%, the material that disposes is put into reacting furnace, do carbon source with hydrocarbon, mix in proportion with buffer gas, the volume ratio of hydrocarbon and buffer gas is 1;

    1,2;

    1,3;

    1,5;

    1 or 9;

    1, feed temperature in 600-1300 ℃

    of reacting furnace, through after 1-900 minute the reaction, obtain the modification composite negative pole material of a kind of nano carbon fiber of growth in situ from the teeth outwards/carbon pipe;

    The described modification negative material that needs is in carbonaceous material, transition metal oxide, fluoride, tinbase and the silicon-base oxide one or more;

    Described catalyst is Fe, Co, Ni, Mo, one or more in V metal dust and oxide thereof, nitrate, halate, the sulfate;

    Described buffer gas is a hydrogen, argon gas, one or more in the nitrogen.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×