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31.15

Hoá lý

Phạm Mạnh Thảo, Doãn Anh Tú, Lã Minh Tuấn, Nguyễn Văn Kỳ(1)

Nghiên cứu giảm nhiễu điện cho pin nhiệt

Study on reducing "electric noise" in thermal cells

Hóa học

2014

4

423-428

0866-7144

This paper describes an effort to overcome the short-circuit (sometimes called "electric noise") causing by lithiumcalcium alloy formed in the thermal cell with calcium metal as anode. In the fIrst method, calcium-containing compounds were created on the surface by immersing anode calcium in gIacial acetic acid solution in acetone, followed by drying stage at different temperatures. Compounds containing Ca 2+ such as calcium oxide, calcium hydroxide, calcium acetate and carbonate inhibit the formation of CaLi2 alloy at the anode surface in contact with the electrolyte so that significantly reduced short-circuit in the cell. In another method, lithium chromate was added in the KCI-LiCI eutectic mixture in the separator. In cells applied both of the methods there wasn't any "electric noise" observed.

TTKHCNQG, CVv 14