Ụzọ nnwale maka ịkwadebe ihe mejupụtara silicon-carbon

A nwalere ihe mejupụtara ihe mejupụtara silicon-cb site na iji nhazi plasma ngwọta (SPP). Nsonaazụ na-egosi na usoro SPP bụ ụzọ magburu onwe ya maka ịkwadebe oji carbon na oke pore olu, ọkara na micro-layered pore Ọdịdị. 0-22

“N’ime ọmụmụ ihe ndị a, ọ bụ naanị ihe mgbaze organic dị ka benzene ka ejiri mee CB. Otú ọ dị, n’ime ọmụmụ ihe a, anyị nyochara ihe mejupụtara ihe mejupụtara ya site n’ime ka silicon nanoparticles dị jụụ n’ime ihe mgbaze organic tupu mwepụ plasma.

Emere nnwale ahụ na ụlọ okpomọkụ na nrụgide. Iji otu ụzọ pensụl na-arụ ọrụ dị ka electrodes maka mpụta plasma, ebe ọ bụ na ọtụtụ n’ime wires bụ plasma sputtering ma ọ bụ vepo, enwere ike iche na enwere adịghị ọcha na ihe mejupụtara.

A na-eji tube seramiiki kpuchie electrode ọ bụla nke etinyere n’ime plọg silicone. A na-ejikọta otu ụzọ electrodes na tube seramiiki ma jupụta na silicon plọg, mgbe ahụ, a na-etinye electrodes na beaker nke nwere dayameta nke 50 mm na ịdị elu nke 100 mm (Fig 1). A na-echekwa ebe dị n’etiti electrodes na 1 mm. The carbon precursor bụ xylene dị ọcha (reagent grade, sigma-aldrich), na silicon nanopowder (nha nha nha = 100nm, AlfaAesar) na xylene. A na-eji ọkụ ọkụ bipolar pulse na-emepụta mwepu. A na-edozi ugboro ike na obosara usu ka ọ bụrụ 25khz na 0.5s n’otu n’otu. Mgbe ahapụchara, a na-enyocha mmiri mmiri na-agbapụta site na cellophane iji nweta ogige siri ike dị na ngwọta. Wee nyochaa, na 80 degrees Celsius, ọ bụ monotonous, na-ahapụ ihe powdery.

Xylene transpiration. Iji nweta nti conductivity, a na-emeso ya na 700 ℃ maka 1h na ọkụ eletrik n’okpuru N2 ikuku. Iji duzie nyocha nke electrochemical nke ihe mejupụtara silicon-CB, a na-eji ihe mejupụtara silicon-CB nwere akụkụ dị nta nke 80wt% dị ka ihe na-arụ ọrụ carbon black slurry iji kwadebe anode.

(10 akụrụngwa%; Superp) dị ka onye na-eduzi, polyacrylic acid (PAA; 10%) dị ka ihe nkedo na mmiri distilled.

A na-agbakọta cell cell CR2032 n’ime igbe mkpuchi jupụtara na argon gas, 2400 Celgard separator, lithium foil dị ka counter electrode na electrode ntụaka, 1MLiPF6 dị ka polycarbonate vinyl = diethyl carbonate (EC = DEC) (1: 1 olu). Jiri 10% fluorinated ethylene carbonate (FEC) dị ka electrolyte. A nwalere sel niile na njupụta ugbu a nke 0.05 ~ 3V na 1°C (Li=Li+).

[372 mah = g; Iji usoro nchọpụta batrị BCS805 dị ndụ, ịchaji (mwepụta lithium) na ịwụsa (lithium thrust) n’ime ụlọ okpomọkụ.