Igama elipheleleyo le-lithium iron phosphate ibhetri yi-lithium iron phosphate lithium ion ibhetri, ebhekisela kwibhetri ye-lithium ion esebenzisa i-lithium iron phosphate njengento efanelekileyo ye-electrode. Kukho iintlobo ezininzi zezixhobo ze-cathode kwiibhetri ze-lithium-ion, ngokukodwa i-lithium cobalt oxide, i-lithium manganate, i-lithium nickelate, izinto ze-ternary, i-lithium iron phosphate njalo njalo. Phakathi kwabo, i-lithium cobalt oxide okwangoku i-cathode isetyenziswe kwiibhetri ezininzi ze-lithium-ion, ngelixa ezinye izinto ze-cathode azizange ziveliswe ngobuninzi kwiimarike ngenxa yezizathu ezahlukeneyo. Ilithium iron phosphate ikwayenye yeebhetri ze-lithium-ion. Ngokomgaqo wezinto eziphathekayo, i-lithium iron phosphate nayo iyinkqubo yokudibanisa / yokuchithwa kwe-deintercalation, efana ngqo ne-lithium cobaltate kunye ne-lithium manganenate.

Iibhetri zeLithium iron phosphate ziibhetri zesekondari ze-lithium-ion. Enye yezona zinto zisetyenziswayo njengebhetri yamandla. Ineenzuzo ezinkulu ngaphezu kweebhetri ze-NI-MH kunye ne-Ni-Cd.

uncedo

1. Ukuphuculwa kokusebenza kokhuseleko

I-PO bond kwi-lithium iron phosphate crystal izinzile kwaye inzima ukubola. Nokuba kubushushu obuphezulu okanye ngaphezulu, akuyi kudilika kwaye kuvelise ubushushu obufana ne-lithium cobalt oxide okanye yenze izinto ezinamandla ze-oxidizing, ngoko inokhuseleko oluhle. Ingxelo yabonisa ukuba ekusebenzeni kwangempela kwe-acupuncture okanye iimvavanyo zesekethe ezimfutshane, inxalenye encinci yeesampuli zafunyanwa ukuba zitshise, kodwa akukho kuqhuma kwenzeka. Kuvavanyo lokutshaja okugqithisileyo, ukutshajiswa kwamandla ombane aphezulu okuphindwe kaninzi ngaphezulu kombane ozikhuphayo osetyenzisiweyo, kwaye kwafunyaniswa ukuba kusekho i-Explosion phenomenon. Nangona kunjalo, ukhuseleko lwayo lwe-overcharge luphuculwe kakhulu xa kuthelekiswa neebhetri ze-electrolyte ze-lithium cobalt oxide eziqhelekileyo.

2, ukuphuculwa kobude bobomi

“I-lithium iron phosphate ibhetri” ibhekisela kwibhetri ye-lithium ion esebenzisa i-lithium iron phosphate njengento efanelekileyo ye-electrode.

Ubomi bomjikelo wobomi obude bebhetri ye-lead-acid malunga namaxesha angama-300, kwaye iphakamileyo ngamaxesha angama-500, ngelixa ibhetri yamandla e-lithium iron phosphate inobomi bomjikelezo wamaxesha angaphezu kwama-2000, kwaye ingasetyenziselwa amaxesha angama-2000 kunye ukutshaja okusemgangathweni (izinga leeyure ezi-5). Iibhetri ze-lead-asidi zomgangatho ofanayo “zintsha kwisiqingatha sonyaka, isiqingatha sonyaka ubudala, kunye nesiqingatha sonyaka sokugcinwa”, ezinokuthatha ukuya kwi-1 ukuya kwi-1.5 iminyaka. Xa isetyenziswe phantsi kweemeko ezifanayo, iibhetri ze-lithium iron phosphate zinobomi obuthiyori kwiminyaka eyi-7 ukuya kwe-8. Uqwalaselo olubanzi, umlinganiselo wexabiso lokusebenza ngokwethiyori ungaphezulu kwamaxesha ama-4 kuneebhetri ze-lead-asidi. Ukukhutshwa okuphezulu kwangoku kunokukhawuleza ukuhlawulisa kunye nokukhupha i-2C ephezulu yangoku. Ngeshaja ezinikeleyo, ibhetri inokuhlawulwa ngokupheleleyo ngaphakathi kwemizuzu ye-40 ye-1.5C ukutshaja, kwaye isiqalo sangoku sinokufikelela kwi-2C, kodwa iibhetri ze-lead-acid azikho ukusebenza okunjalo.

I-3, ukusebenza kakuhle kobushushu obuphezulu

Incopho yokufudumala yombane ye-lithium iron phosphate inokufikelela kwi-350℃-500 ℃, ngelixa i-lithium manganate kunye ne-lithium cobaltate zijikeleze i-200℃ kuphela. Uluhlu olubanzi lobushushu bokusebenza (-20C-75C), olunokumelana nobushushu obuphezulu, i-lithium iron phosphate electric heat heat inokufikelela kwi-350℃-500℃, ngelixa i-lithium manganate kunye ne-lithium cobaltate zijikeleze i-200 ℃ kuphela.

4, umthamo omkhulu

∩Umthamo weebhetri ezinokutshajwa kwakhona uya kuba ngaphantsi ngokukhawuleza kunomthamo olinganisiweyo xa zihlala zitshajwe ngokupheleleyo kwaye zingakhutshwa. Le nto ibizwa ngokuba yimemori effect. Njenge-nickel-metal hydride kunye neebhetri ze-nickel-cadmium, kukho imemori, kodwa iibhetri ze-lithium iron phosphate azinayo le nto. Nokuba ibhetri ikwimeko enjani, inokutshajwa kwaye isetyenziswe ngaphandle kokuyikhupha kuqala.

6, ubunzima obulula

Umthamo webhetri ye-lithium yentsimbi ye-phosphate yenkcazo efanayo kunye nomthamo yi-2/3 yomthamo webhetri ye-lead-acid, kwaye ubunzima buyi-1/3 yebhetri ye-lead-acid.

7, Ukukhuselwa kwendalo

Iibhetri zeLithium iron phosphate ngokubanzi zithathwa njengezingenazo iintsimbi ezinzima kunye neentsimbi ezinqabileyo (ibhetri yenickel-hydrogen ifuna isinyithi esinqabileyo), engeyiyo ityhefu (iqinisekisiwe nge-SGS), engangcolisi, ngokuhambelana nemigaqo ye-RoHS yaseYurophu, kunye nohlaza olupheleleyo. isatifikethi sebhetri. Ke ngoko, isizathu sokuba iibhetri ze-lithium zithandwa lishishini ikakhulu ngenxa yokuqwalaselwa kokusingqongileyo. Ngoko ke, ibhetri ifakwe kwisicwangciso sesizwe sophuhliso lwe-high-tech “863” ngexesha “leSicwangciso seMinyaka emiHlanu” kwaye ibe yiprojekthi yenkxaso yesizwe kunye nenkuthazo. Ngokungena kweTshayina kwi-WTO, umthamo wokuthumela ngaphandle kweTshayina weebhayisekile zombane uza kunyuka ngokukhawuleza, kwaye iibhayisekile zombane ezingena eYurophu nase-United States kuye kwafuneka ukuba zixhotyiswe ngeebhetri ezingangcolisekiyo.

Kodwa ezinye iingcali zathi ungcoliseko lwemekobume olubangelwa ziibhetri ezineasidi yelothe ubukhulu becala lwenzeka kwinkqubo yokuvelisa engaqhelekanga yenkampani kunye nenkqubo yokurisayikilisha. Ngendlela efanayo, iibhetri ze-lithium ziyinxalenye yeshishini elitsha lamandla, kodwa ayikwazi ukuphepha ingxaki yokungcola kwensimbi enzima. Ilothe, i-arsenic, i-cadmium, i-mercury, ichromium, njl. Ibhetri ngokwayo luhlobo lwento yeekhemikhali, ngoko ke kunokwenzeka ukuvelisa iintlobo ezimbini zokungcola: enye ingcoliseko yenkqubo yokungcola kubunjineli bemveliso; enye kukungcoliseka kwebhetri emva kokuba ichithwe.

Iibhetri ze-lithium iron phosphate nazo zineziphene zazo: umzekelo, ukusebenza kakubi kobushushu obuphantsi, ukuxinana kwempompo ye-cathode ephantsi, kunye nomthamo webhetri ye-lithium ye-phosphate ye-iron enomthamo olinganayo mkhulu kuneebhetri ze-lithium-ion ezifana ne-lithium. i-cobalt oxide, ngoko ayinayo inzuzo kwiibhetri ezincinci. Xa zisetyenziswa kwiibhetri zamandla, iibhetri ze-lithium iron phosphate, njengezinye iibhetri, kufuneka zijongane nemiba yokungaguquguquki kwebhetri.