Yintoni ibhetri yobushushu obuphantsi? Izinto eziluncedo kunye nemisebenzi yeebhetri ze-lithium ezisezantsi

Abahlobo abaninzi baya kuba nemibuzo xa besiva ukusabela kokuqala kweebhetri ezinobushushu obuphantsi: Yintoni ibhetri enobushushu obuphantsi? Ngaba kukho naluphi na uncedo?

Yintoni ibhetri enobushushu obuphantsi?

Ibhetri enobushushu obuphantsi yibhetri eyodwa ephuhliswe ngokukodwa iziphene zobushushu obuphantsi obukhoyo ekusebenzeni kwemithombo yamandla ekhemikhali. I ibhetri yobushushu obuphantsi isebenzisa i-VGCF kunye nekhabhoni esebenzayo kunye nommandla othile womphezulu we (2000±500)㎡/izongezo zegesi, kwaye ihambelana nemathiriyeli ye-electrode elungileyo kunye nengalunganga. I-electrolyte ekhethekileyo enezongezo ezikhethekileyo ijojowe ukuze kuqinisekiswe umsebenzi wokukhutshwa kweqondo eliphantsi lobushushu obuphantsi bebhetri. Ngelo xesha, ukushisa okuphezulu Umlinganiselo wokutshintsha umthamo we-24h kwi-70 ℃ ngu-≦0.5%, enomsebenzi wokukhusela kunye nokugcinwa kweebhetri ze-lithium eziqhelekileyo.

Iibhetri ezinobushushu obuphantsi zibhekisa kwiibhetri ze-lithium-ion ubushushu bazo bokusebenza bungaphantsi kwe-40°C. Zisetyenziswa ikakhulu kwi-aerospace yomkhosi, izixhobo ezixhonywe kwisithuthi, uphando lwezenzululwazi kunye nokuhlangula, unxibelelwano lwamandla, ukhuseleko loluntu, i-elektroniki yezonyango, oololiwe, iinqanawa, iirobhothi, kunye nezinye iinkalo. Iibhetri ze-lithium ezinobushushu obuphantsi zihlelwa ngokuhambelana nokusebenza kwazo: ukugcinwa kwamandla, ubushushu obuphantsi beebhetri ze-lithium, kunye nesantya-uhlobo lweebhetri ze-lithium eziphantsi. Ngokweenkalo zesicelo, iibhetri ze-lithium ezinobushushu obuphantsi zohlulwe zibe ziibhetri ze-lithium ezisezantsi zobushushu bokusetyenziswa emkhosini kunye neebhetri ze-lithium ezinobushushu obuphantsi. Indawo esetyenziswa kuyo yohlulwe yangamacandelo amathathu: iibhetri eziphantsi kobushushu obuphantsi, iibhetri ezikhethekileyo ezinobushushu obuphantsi, kunye neebhetri ezinobushushu obuphantsi kakhulu bendalo.

Iindawo zokusetyenziswa kweebhetri ezinobushushu obuphantsi ikakhulu zibandakanya izixhobo zasemkhosini, i-aerospace, izixhobo zemoto ezithwele imijukujelwa, uphando lwenzululwazi olupholileyo, ukuhlangulwa okubandayo, unxibelelwano lwamandla, ukhuseleko loluntu, izixhobo zombane zonyango, oololiwe, iinqanawa, iirobhothi, kunye namanye amacandelo.

Izinto eziluncedo kunye nemisebenzi yeebhetri ze-lithium ezisezantsi

Iibhetri ze-lithium ezinobushushu obuphantsi zineenzuzo zokulula, amandla athile aphezulu, kunye nokuphila ixesha elide kwaye zisetyenziswa ngokubanzi kwizixhobo zombane ezahlukeneyo. Phakathi kwabo, ibhetri ye-lithium-ion ye-polymer ephantsi yobushushu nayo ineenzuzo zokupakishwa okulula, kulula ukutshintsha ukuma kwejometri yesiphepho, i-ultra-light and ultra-thin, kunye nokhuseleko oluphezulu. Ibe ngumthombo wamandla kwiimveliso ezininzi ze-elektroniki eziphathwayo.

Ayinakusebenzisa iibhetri eziqhelekileyo zasekuhlaleni kwi--20°C, kwaye isengasebenzisa iibhetri ze-lithium ezinobushushu obuphantsi, idla ngokuba ku -50°C. Okwangoku, iibhetri ezinobushushu obuphantsi ziqhele ukusetyenziswa kwindawo eyi-℃ okanye ngaphantsi. Ukongeza kwizixhobo zombane zonxibelelwano, izixhobo zombane eziphathwayo zomkhosi, izixhobo zombane zomqondiso, kunye nezixhobo zombane ezincinci zokuqhuba izixhobo zombane nazo zifuna ukusetyenziswa kweebhetri ezinobushushu obuphantsi. Ezi zixhobo zamandla nazo zineemfuno zokusebenza zobushushu obuphantsi xa usebenza endle.

Iiprojekthi zokuphonononga indawo ezifana nendiza yendawo kunye nenkqubo yokumisa inyanga ephunyezwa e-China nayo ifuna imithombo yamandla yokugcina amandla aphezulu, ngakumbi ibhetri ye-lithium ephantsi kobushushu. Ngenxa yokuba iimveliso zonxibelelwano zomkhosi zineemfuno ezingqongqo kwiimpawu zebhetri, ngakumbi zifuna iziqinisekiso zonxibelelwano kumaqondo obushushu asezantsi. Ngoko ke, ukuphuhliswa kweebhetri ze-lithium eziphantsi kobushushu kubaluleke kakhulu kuphuhliso lomkhosi kunye ne-aerospace industry.

Iibhetri ze-lithium ezinobushushu obuphantsi zisetyenziswa ngokubanzi ngenxa yobunzima bazo, amandla athile aphezulu, kunye nobomi obude. Iibhetri ze-lithium ezinobushushu obuphantsi zenziwe ngezinto ezizodwa kunye neenkqubo kwaye zifanelekile ukusetyenziswa kwiindawo ezibandayo ezingaphantsi kwe-zero.

Iinjineli kwiYunivesithi yaseCalifornia, eSan Diego, ziye zaphuhlisa ngempumelelo i-lithium iron phosphate lithium-ion ibhetri yamandla ekwazi ukugcina ukusebenza kwiqondo lokushisa eliphantsi kwe-60 ° C. Okwangoku, iintlobo zeebhetri ezinobushushu obuphantsi obunokuthi zibeke kwiimarike zibandakanya iibhetri ze-lithium iron phosphate kunye neebhetri ze-lithium eziphantsi kwe-polymer. Ezi ntlobo zimbini zetekhnoloji yebhetri yobushushu obuphantsi sele ikhulile.

Iimpawu zebhetri ye-lithium yentsimbi ye-phosphate ephantsi

• Ukusebenza okuphezulu kobushushu obuphantsi: ukukhutshwa kwi-0.5C kwi-40 ℃, amandla okukhutshwa adlula i-60% yesamba sokuqala; kwi -35 ℃, iqhume kwi-0.3C, umthamo wokukhupha udlula i-70% yesamba sokuqala;
• Uluhlu olubanzi lobushushu bokusebenza, -40 ℃ ukuya ku-55 ℃;
• Ubushushu obuphantsi lithium iron phosphate ibhetri inomjikelo we-0.2c wokukhupha ijika yovavanyo kwi -20°C. Emva kwemijikelo ye-300, kusekho izinga lokugcinwa kwamandla angaphezu kwama-93%.
• Iyakwazi ukukhupha igophe lokukhutshwa kweebhetri ze-lithium iron phosphate zobushushu obuphantsi kumaqondo obushushu ahlukeneyo kwi -40°C ukuya kuma-55°C.

Ibhetri ye-lithium yensimbi ye-phosphate ephantsi yobushushu bubuchwephesha obutsha obuphuhliswe emva kophando olude kunye nophuhliso kunye novavanyo. Izinto ezisebenza kakhulu ezikrwada zongezwa kwi-electrolyte. Iimathiriyeli ekrwada ezigqwesileyo kunye nobuchwepheshe buqinisekisa ukusebenza kakuhle kokukhupha kwebhetri kumaqondo obushushu angekho nzulu. Le ibhetri ye-lithium yentsimbi ye-phosphate ephantsi yobushushu isetyenziswa ngokubanzi kwiindawo ezinobushushu obuphantsi njengezixhobo zomkhosi, imboni ye-aerospace, izixhobo zokuntywila, uphando lwesayensi ye-polar, unxibelelwano lwamandla, ukhuseleko loluntu, i-elektroniki yezonyango, njl.