I-electrode entle yeiibhetri ze-lithium-ionyi-lithium iron phosphate material, enenzuzo enkulu ekusebenzeni kokhuseleko kunye nobomi bomjikelezo.Ezi zezinye zezona zibonakaliso ezibalulekileyo zobugcisa bebhetri yamandla.Ibhetri ye-Lifepo4 kunye ne-1C yokutshaja kunye nokukhupha umjikelo wobomi inokufezekiswa ngamaxesha angama-2000, i-puncture ayiqhubi, akulula ukutshisa kunye nokuqhuma xa ugqithise.Izinto ze-lithium iron phosphate cathode zenza iibhetri ze-lithium-ion zibe lula ukuzisebenzisa kuthotho.
I-lithium iron phosphate njengesixhobo se-cathode
Ibhetri ye-Lifepo4 ibhekisa kwibhetri ye-lithium-ion esebenzisa i-lithium iron phosphate njengesixhobo esilungileyo se-electrode.Izinto ezilungileyo ze-electrode zeebhetri ze-lithium-ion ikakhulu ziquka i-lithium cobaltate, i-lithium manganate, i-lithium nicklate, izinto ze-ternary, i-lithium iron phosphate, kunye nokunye okunjalo.Phakathi kwabo, i-lithium cobaltate yinto efanelekileyo ye-electrode esetyenziswa kwiibhetri ezininzi ze-lithium-ion.Ngokomgaqo, i-lithium iron phosphate nayo iyinkqubo yokufakela kunye ne-deintercalation.Lo mgaqo ufana ne-lithium cobaltate kunye ne-lithium manganate.
iinzuzo zebhetri yelifepo4
1. Ukutshaja okuphezulu kunye nokusebenza kakuhle kokukhupha
Ibhetri yeLifepo4 yibhetri yesibini ye-lithium-ion.Enye injongo ephambili yeyokuba iibhetri zamandla.Ineenzuzo ezinkulu ngaphezu kweebhetri ze-NI-MH kunye ne-Ni-Cd.Ibhetri ye-Lifepo4 inexabiso eliphezulu kwaye ikhupha ukusebenza kakuhle, kwaye intlawulo kunye nokusebenza kakuhle kokukhutshwa kunokufikelela ngaphezu kwe-90% phantsi kwemeko yokukhutshwa, ngelixa ibhetri ye-lead-acid i malunga ne-80%.
2. ibhetri yelifepo4 ukusebenza kokhuseleko oluphezulu
Ibhondi ye-PO kwi-lithium iron phosphate crystal izinzile kwaye inzima ukubola, kwaye ayidibanisi okanye ishushu njenge-lithium cobaltate okanye yenza into eyomeleleyo ye-oxidizing nakwiqondo lokushisa eliphezulu okanye i-overcharge, kwaye ngoko inokhuseleko oluhle.kwintsebenzo yangempela. , inxalenye encinci yesampulu ifunyenwe into evuthayo kwi-acupuncture okanye i-short-circuit test, kodwa kwakungekho siganeko sokuqhuma.Kuvavanyo lwe-overcharge, intlawulo ye-voltage ephezulu ephindwe kaninzi ngaphezulu kombane wokuzikhupha isetyenzisiwe, kwaye kwafunyaniswa ukuba kusekho i-Explosion phenomenon.Nangona kunjalo, ukhuseleko lwayo lokutshaja luphuculwe kakhulu xa kuthelekiswa nolwelo oluqhelekileyo lwe-electrolyte lithium cobalt oxide ibhetri.
3. Lifepo4 ibhetri ubomi bomjikelo omde
Ibhetri ye-Lifepo4 ibhekisa kwibhetri ye-lithium-ion esebenzisa i-lithium iron phosphate njengesixhobo esilungileyo se-electrode.Ibhetri ye-lead-acid yexesha elide inobomi bomjikelezo malunga namaxesha angama-300, kwaye iphakamileyo ngamaxesha angama-500.Ibhetri yamandla e-lithium iron phosphate inobomi bomjikelezo wamaxesha angaphezu kwama-2000, kwaye umrhumo oqhelekileyo (izinga le-5-yure) lingasetyenziselwa ukuya kumaxesha angama-2000.Umgangatho ofanayo webhetri ye-lead-acid "yisiqingatha sonyaka omtsha, isiqingatha sonyaka, ukugcinwa kunye nokugcinwa kwesiqingatha sonyaka", ukuya kwi-1 ~ 1.5 iminyaka, kwaye ibhetri ye-lifepo4 isetyenziswe phantsi kweemeko ezifanayo, ubomi bethiyori buya kuthi. ukufikelela 7 ~ 8 iminyaka.Ukuqwalasela ngokubanzi, umlinganiselo wexabiso lentsebenzo ngokwethiyori ungaphezu kwamaxesha amane ebhetri ye-lead-asidi.Ukukhutshwa okuphezulu kwangoku kunokuhlawuliswa ngokukhawuleza kwaye kukhutshwe nge-2C ephezulu yangoku.Ngaphantsi kweshaja ekhethekileyo, ibhetri inokuhlawulwa ngokupheleleyo ngaphakathi kwe-1.5 imizuzu ye-1.5C ukutshaja, kwaye i-current current inokufikelela kwi-2C, kodwa ibhetri ye-lead-acid ayinakho ukusebenza okunjalo.
4. Ukusebenza kakuhle kweqondo lokushisa
Iqondo lobushushu eliphezulu le-lithium iron phosphate linokufikelela kuma-350 ° C -500 ° C ngelixa i-lithium manganate kunye ne-lithium cobaltate zijikeleze kuphela i-200 ° C. Uluhlu olubanzi lobushushu bokusebenza (-20C-+75C), kunye nokumelana nobushushu obuphezulu, i-lithium iron phosphate Incopho yokufudumala yombane inokufikelela kwi-350 °C-500 °C, ngelixa i-lithium manganate kunye ne-lithium cobalt oxide kuphela kwi-200 °C.
5. Lifepo4 ibhetri Umthamo ophezulu
Inomthamo omkhulu kuneebhetri eziqhelekileyo (i-lead-acid, njl.).Umthamo we-monomer yi-5AH-1000AH.
6. Akukho mpembelelo yenkumbulo
Iibhetri ezihlawulelwayo zisebenza phantsi kweemeko ezihlala zingakhutshwa ngokupheleleyo, kwaye umthamo uya kuwela ngokukhawuleza ngaphantsi komthamo olinganisiweyo.Le nto ibizwa ngokuba yimemori effect.Imemori efana ne-nickel-metal hydride kunye neebhetri ze-nickel-cadmium, kodwa ibhetri ye-lifepo4 ayinayo le nto, kungakhathaliseki ukuba ibhetri injani na, inokusetyenziswa kunye nentlawulo, akukho mfuneko yokukhupha kunye nokutshaja kwakhona.7.Ubunzima bebhetri yelifepo4
Ibhetri ye-lifepo4 yomthamo ofanayo wokuchazwa yi-2/3 yomthamo webhetri ye-lead-asidi, kwaye ubunzima yi-1/3 yebhetri ye-lead-asidi.
8. Iibhetri zeLifepo4zinobuhlobo nokusingqongileyo
Ibhetri ngokuqhelekileyo ithathwa njengekhululekile kuyo nayiphi na isinyithi esinzima kunye neentsimbi ezinqabileyo (iibhetri ze-Ni-MH zifuna isinyithi esinqabileyo), i-non-toxic (i-SGS eqinisekisiweyo), engangcolisi, ngokuhambelana nemimiselo ye-RoHS yaseYurophu, isiqinisekiso sebhetri eluhlaza ngokupheleleyo. .Ke ngoko, isizathu sokuba iibhetri ze-lithium zithandwa lishishini kukuqwalaselwa kokusingqongileyo.Ngoko ke, ibhetri ibandakanyiwe kwisicwangciso sesizwe se-863 sophuhliso lobuchwepheshe obuphezulu ngexesha le "Isicwangciso seMinyaka emiHlanu" kwaye ibe yiprojekthi yesizwe ephambili yenkxaso kunye nenkuthazo.Ngokungena kweTshayina kwi-WTO, umthamo wokuthumela ngaphandle kweebhayisikile zombane eTshayina uza kunyuka ngokukhawuleza, kwaye iibhayisekile zombane ezingena eYurophu nase-United States kuye kwafuneka ukuba zixhotyiswe ngeebhetri ezingangcolisi.Ukusebenza kwebhetri ye-lithium-ion kuxhomekeke ikakhulu kwizinto ezintle kunye nezibi.I-Lithium iron phosphate yinto yebhetri ye-lithium evele yavela kwiminyaka yamuva nje.Ukusebenza kwayo kokhuseleko kunye nobomi bomjikelezo ayinakuthelekiswa nezinye izinto.Ezona zalathisi zobugcisa ezibalulekileyo zebhetri.Ibhetri ye-Lifepo4 ineenzuzo zokungabi netyhefu, ukungangcolisi, ukusebenza kakuhle kokhuseleko, uluhlu olubanzi lwezinto ezikrwada, amaxabiso aphantsi, kunye nobomi obude.Yimpahla efanelekileyo ye-cathode kwisizukulwana esitshaiibhetri ze-lithium-ion.