Indlela Amabhethri Asebenza Ngayo
Ibhethri iyithuluzi le-electrochemical eliguqula amandla amakhemikhali abe amandla kagesi ngokusebenzisa ukusabela kwe-redox. Njengenye yezinto ezibaluleke kakhulu emlandweni wobuchwepheshe, amabhethri asivumela ukugcina nokusebenzisa amandla kumadivayisi asukela ezibanini kuya ezimotweni zikagesi. Lesi sihloko sizohlola ngokujulile ukuthi amabhethri asebenza kanjani, izinhlobo ezahlukene zamabhethri, kanye nokusetshenziswa kwawo empilweni yansuku zonke.
Izisekelo Ze-Chemistry Yebhethri
Ibhethri ngalinye liqukethe izingxenye ezintathu eziyinhloko : i-electrode enhle (i-cathode), i-electrode engemihle (i-anode), kanye ne-electrolyte. I-electrolyte iyindlela evumela ama-ion ukuthi ahambe phakathi kwe-anode ne-cathode. Amagesi noma uketshezi lwamakhemikhali atholakala ku-electrolyte avumela ukusabela kwamakhemikhali ukuthi kwenzeke, kukhishwe amandla kagesi angasetshenziswa.
Ukusabela kwe-Redox
Ukusabela kwe-Redox kuyinhliziyo yendlela amabhethri asebenza ngayo. Kule nqubo, kwenzeka ukusabela kwamakhemikhali okubili okuphambene: i-oxidation ku-anode kanye nokunciphisa ku-cathode. I-Oxidation ukulahleka kwama-electron, kanti ukunciphisa ukuzuza kwama-electron.
Nasi isibonelo esilula sendlela ukusabela kwe-redox okusebenza ngayo ebhethri le-zinc-carbon:
1. I-Anode (insimbi ye-zinc, i-Zn):
Zn → Zn²⁺ + 2e⁻
Le nqubo ikhiqiza i-zinc ion enhle (Zn²⁺) kanye nama-electron amabili (2e⁻).
2. I-Cathode (ingxube ye-manganese dioxide, i-MnO₂):
2MnO₂ + 2H₂O + 2e⁻ → Mn₂O₃ + 2OH⁻
Le nqubo isebenzisa ama-electron akhiqizwa yi-anode ukuguqula i-manganese dioxide ibe yi-manganese hydroxide.
Sekukonke, lokhu kusabela kuqhuba ukugeleza kwama-electron kusuka ku-anode kuya ku-cathode ngesekethe yangaphandle, okuyi-electrical current esiyisebenzisayo.
Izinhlobo Zamabhethri
Kunezinhlobo ezahlukene zamabhethri ezisetshenziswa ezinhlelweni ezahlukene, ngayinye inezinzuzo zayo kanye nokungalungi kwayo.
Ibhethri Eyinhloko
Amabhethri ayinhloko awakwazi ukushajwa kabusha. Uma esekhishiwe, awakwazi ukusetshenziswa futhi futhi kumele alahlwe. Izibonelo zifaka phakathi amabhethri e-alkaline kanye ne-lithium.
1. Amabhethri e-Alkaline: Avame ukusetshenziswa ezintweni zasekhaya ezifana nama-remote e-TV namawashi odonga. I-anode ngokuvamile yakhiwa yi-zinc, kanye ne-cathode ye-manganese dioxide, kanti i-electrolyte iyi-potassium hydroxide (KOH).
2. Amabhethri e-Lithium: Alula futhi anamandla aphezulu ngomthwalo weyunithi ngayinye kunamabhethri e-alkaline. Avame ukusetshenziswa kumadivayisi kagesi afana namawashi kanye nama-calculator.
Ibhethri Lesibili
Amabhethri esibili, noma amabhethri aphinde ashajwe, angaphinde ashajwe kusetshenziswa ugesi. Izibonelo zamabhethri esibili zifaka amabhethri e-lead-acid, amabhethri e-nickel-cadmium (NiCd), kanye namabhethri e-lithium-ion.
1. Ibhethri le-Lead-Acid: Livame ukusetshenziswa ezimotweni zezimoto. Linamandla okusebenza ebangeni elibanzi lokushisa futhi lingakhiqiza amaza aphezulu. I-anode yenziwe nge-lead (PB) kanye ne-cathode ye-lead dioxide (PbO₂), kanti i-electrolyte iyisisombululo se-sulfuric acid (H₂SO₄).
2. Amabhethri e-Nickel-Cadmium (NiCd): Avame ukusetshenziswa kumathuluzi kagesi namadivayisi ezokwelapha. Angakhiqiza amaza aphezulu kodwa anobuthakathaka bomphumela wememori onciphisa amandla okuphinda ashajwe.
3. Amabhethri e-Lithium-Ion (Li-Ion): Athandwa kakhulu ngenxa yamandla awo aphezulu kanye nokuntuleka komphumela wememori njenge-NiCd. Avame ukusetshenziswa kumadivayisi kagesi aphathekayo njengama-laptop nama-smartphone.
Izinhlelo Zokusebenza Zebhethri Empilweni Yansuku Zonke
Amabhethri aseyingxenye ebalulekile yempilo yanamuhla. Atholakala cishe kuzo zonke izici zokuphila kwethu, kusukela ezintweni zasendlini kuya ezisetshenziswa ezimbonini.
Ama-elekthronikhi Abathengi
Amadivayisi afana namaselula, ama-laptop, amakhamera edijithali, namathebulethi konke kuncike kumabhethri ukuze kutholakale amandla. Intuthuko kwezobuchwepheshe bebhethri, ikakhulukazi amabhethri e-lithium-ion, ivumele la madivayisi ukuba abe mancane, alula, futhi asebenze kahle kakhudlwana.
Izimoto zikagesi
Izimoto zikagesi (ama-EV) ziya ngokuya zithandwa ngenxa yokusebenzisa kahle amandla kanye nokungcoliswa komoya okuphansi. Amabhethri e-lithium-ion ayindlela evamile esetshenziswa kulezi zimoto ngenxa yokusebenzisa amandla aphezulu kanye nokukwazi ukushaja ngokushesha. Ucwaningo luyaqhubeka lokuthuthukisa amabhethri anamakhono amakhulu kanye nezikhathi zokushaja ngokushesha ukuze kwandiswe ibanga lokushayela futhi kuncishiswe izikhathi zokushaja.
Izicelo Zezimboni
Emkhakheni wezimboni, amabhethri asetshenziswa ezinhlotsheni ezahlukene zokusebenza, okuhlanganisa izinsiza zamandla ezisekelayo (i-UPS), imishini esindayo, kanye nezinhlelo zamandla elanga . Amabhethri kuma-UPS, isibonelo, ahlinzeka ngogesi wesikhashana ngesikhathi sokucima kukagesi, okuqinisekisa ukusebenza okuqhubekayo kwemishini ebalulekile.
Ikusasa Lobuchwepheshe Bebhethri
Emashumini eminyaka amuva nje, ucwaningo nentuthuko kwezobuchwepheshe bebhethri kuye kwanda. Umgomo omkhulu ukudala amabhethri anamakhono okugcina amandla aphezulu , izikhathi zokushaja ngokushesha, kanye nokuphila komjikelezo omude.
Ibhethri Eliqinile
Amabhethri e-Solid-state ayintuthuko yakamuva ethembisa ukuminyana kwamandla aphezulu kanye nokuphepha okukhulu uma kuqhathaniswa namabhethri avamile. Asebenzisa i-electrolyte eqinile esikhundleni se-electrolyte ewuketshezi yendabuko, okunciphisa ingozi yokuvuza nomlilo.
Ibhethri le-Graphene
I-Graphene iyinto encane kakhulu equkethe ungqimba olulodwa lwama-athomu e-carbon. Amabhethri asebenzisa i-graphene angashaja ngokushesha futhi abe nomthamo wokugcina amandla ophakeme kakhulu. Nakuba isesesigabeni sokuthuthukiswa, ukusetshenziswa kwayo okungenzeka kukhulu kakhulu.
Ubuchwepheshe bokushaja okusheshayo
Enye yezinselele ezinkulu ngamabhethri amanje isikhathi esidingekayo ukuze ushaje kabusha. Ucwaningo luyaqhubeka lokuthuthukisa ubuchwepheshe bokushaja okusheshayo obunganciphisa izikhathi zokushaja zibe yimizuzu nje, kunokuba kube amahora.
Isiphetho
Amabhethri angomunye wobuchwepheshe obubaluleke kakhulu empilweni yanamuhla , okusivumela ukuthi sisebenzise amandla noma kuphi nanoma nini. Kusukela ekuqondeni izisekelo zokusabela kwamakhemikhali ngaphakathi kwamabhethri kuya ekuqondeni izinhlobo zawo ezahlukene kanye nokusetshenziswa kwawo, singakuqonda kangcono ukubaluleka kanye nobunzima balobu buchwepheshe. Ngocwaningo oluqhubekayo, ikusasa lobuchwepheshe bebhethri libukeka lithembisa kakhulu, linikeza izixazululo zamandla ezisebenza kahle futhi ezinobungani nemvelo. Ngokuhamba kwesikhathi, amabhethri cishe azosebenza kahle kakhulu, ashibhile, futhi aqhubeke nokusimama, edlala indima ebaluleke kakhulu ezimpilweni zethu futhi esiza ekubhekaneni nezinye zezinselele zamandla ezinkulu emhlabeni.
