Iibhetri ze-Li-ion ziphantse yonke indawo.Zisetyenziswa kwizicelo ezivela kwiifowuni eziphathwayo kunye neelaptops ukuya kwizithuthi ezixubeneyo nezombane.Iibhetri zeLithium-ion zikwaxhaphake kakhulu kwizicelo ezinkulu ezifana nee-Uninterruptible Power Supplies (UPSs) kunye neBattery Energy Storage Systems (BESSs) emileyo.
Ibhetri sisixhobo esineseli enye okanye ezininzi ze-electrochemical ezinoqhagamshelo lwangaphandle lokunika amandla izixhobo zombane.Xa ibhetri inika amandla ombane, i-terminal yayo yi-cathode, kwaye i-terminal yayo yi-anode.Itheminali ephawulwe i-negative ngumthombo wee-electron eziya kutyhutyha isekethe yombane yangaphandle ukuya kwitheminali elungileyo.
Xa ibhetri ixhunywe kumthwalo wangaphandle wombane, i-redox (ukunciphisa-oxidation) i-reaction iguqula i-reactants-energy reactants kwimveliso yamandla aphantsi, kwaye umehluko wamandla wamahhala unikezelwa kwisiphaluka sangaphandle njengamandla ombane.Ngokwembali igama elithi "ibhetri" libhekiswa ngokukodwa kwisixhobo esenziwe ngeeseli ezininzi;nangona kunjalo, ukusetyenziswa kuye kwavela ukubandakanya izixhobo ezenziwe ngeseli enye.
Isebenza njani ibhetri ye-lithium-ion?
Uninzi lweebhetri ze-Li-ion zabelana ngoyilo olufanayo olubandakanya i-metal oxide positive electrode (cathode) eqatywe kumqokeleli wangoku we-aluminium, i-electrode engalunganga (i-anode) eyenziwe ngekhabhoni / igraphite eqatywe kumqokeleli wangoku wobhedu, isahluli kunye ne-electrolyte eyenziwe ityuwa ye-lithium kwi-solvent ephilayo.
Ngelixa ibhetri ikhupha kwaye inika amandla ombane, i-electrolyte ithwala i-lithium ion echajiwe kakuhle ukusuka kwi-anode ukuya kwi-cathode kunye ne-vice versa ngokusebenzisa isahluli.Ukuhamba kwee-ion ze-lithium kudala ii-electron zamahhala kwi-anode eyenza intlawulo kumqokeleli wangoku olungileyo.Umsinga wombane ke uphuma kumqokeleli wangoku ngesixhobo esiqhutywayo (iselfowuni, ikhompyutha, njl.njl.) ukuya kumqokeleli wangoku ongalunganga.Isahluli sivala ukuhamba kwee-electron ngaphakathi kwebhetri.
Ngexesha lokutshaja, umthombo wamandla ombane wangaphandle (umjikelo wokutshaja) usebenzisa i-voltage engaphezulu (i-voltage ephezulu kunokuvelisa ibhetri, i-polarity efanayo), ukunyanzela umsinga wokutshaja ukuba uhambe ngaphakathi kwebhetri ukusuka kwinto elungileyo ukuya kwi-electrode engalunganga, okt kwicala elingasemva lomsinga wokukhupha phantsi kweemeko eziqhelekileyo.I-ion ze-lithium zifuduka zisuka kwi-positive ukuya kwi-electrode engalunganga, apho ziye zifakwe kwi-porous electrode material kwinkqubo eyaziwa ngokuba yi-inter-calation.
Ixesha lokuposa: Jun-26-2022