Izingane eziqaphelayo zingase ziqaphele ukuthi kokubili amandla aphathwayo kanye nekhompyutha ephathekayo inebhethri elifanayo elingu-5000mAh, kodwa leli bhethri likhulu kakhulu kunelokuqala.

Ngakho umbuzo uwukuthi: Wonke amabhethri e-lithium, kodwa kungani amabhethri afanayo ehlukene kakhulu? Kuvela ukuthi nakuba bobabili, kodwa ukubhekwa ngokucophelela, ama-voltage V kanye ne-Wh wamabhethri amabili ngaphambi kwe-mAh ahlukile.

Uyini umehluko phakathi kwe-mAh ne-Wh?

Ihora le-Milliampere (ihora le-milliampere) iyunithi kagesi, futhi i-Wh iyunithi yamandla.

Le miqondo emibili ihlukile, ifomula yokuguqula ithi: Wh=mAh×V(voltage)&Pide;1000.

Ngokucacile, amahora angu-milliampere angaqondwa njengenani eliphelele lama-electron (inani lama-electron adlula ku-current 1000 milliampere-amahora). Kodwa ukubala ingqikithi yamandla, kumelwe sibale amandla e-electron ngayinye.

Ake sithi sinama-milliamperes angu-1000 wama-electron, futhi amandla kagesi e-electron ngayinye angama-volts angu-2, ngakho-ke sinamahora angu-4 watt. Uma i-electron ngayinye ingu-1v kuphela, sinehora le-watt eli-1 kuphela lamandla.

Ngokusobala, ngiwuthanda kangakanani uphethiloli, njengelitha elilodwa; I-Wh ibhekisela ekutheni ilitha elilodwa likaphethiloli lingahamba ibanga elingakanani. Ukuze ubale ukuthi ilitha lamafutha lingahamba ibanga elingakanani, kufanele siqale sibale ukufuduka. Kulokhu, ukushintshwa kwe-V.

Ngakho-ke, amandla ezinhlobo ezahlukene zemishini (ngenxa yokuhluka kwamandla kagesi) ngokuvamile awanakulinganiswa. Amabhethri akwikhompyutha ephathekayo abukeka emakhulu futhi enamandla kakhulu, kodwa enza umsebenzi omningi kunamabhethri eselula ngesikhathi esisodwa, futhi awahlali isikhathi eside kunemithombo yamandla eselula.

Kungani ama-ejenti esebenzisa i-Wh esikhundleni se-mAh njengomkhawulo?

Abantu abavame ukundiza ngendiza bangase bazi ukuthi i-Civil Aviation Administration inemithethonqubo elandelayo kumabhethri e-lithium:

Umshini we-elekthronikhi ophathwayo onamandla webhethri le-lithium ongadluli ku-100Wh uyagibela, futhi awukwazi ukufihlwa emthwalweni futhi uthunyelwe. Amandla ebhethri aphelele azo zonke izinto zikagesi ezithwalwa abagibeli akumele eqe ku-100Wh. Amabhethri e-lithium angaphezu kuka-100Wh kodwa angadluli ku-160Wh adinga imvume yenkampani yendiza ukuze ithunyelwe. Amabhethri e-lithium angaphezu kuka-160Wh ngeke athathwe noma athunyelwe.

Akumele sibuze kuphela, kungani i-FAA ingasebenzisi amahora angu-milliampere njengeyunithi yokulinganisa?

Uma kucatshangelwa ukuthi ibhethri lingase liqhume, ukushuba kokusetshenziswa kokuqhuma kuhlobene ngokuqondile nosayizi wamandla (Wh iyunithi yamandla), ngakho iyunithi yamandla kufanele icaciswe njengomkhawulo. Isibonelo, ibhethri engu-1000mAh incane kakhulu, kodwa uma i-voltage yebhethri ifinyelela ku-200V, khona-ke inamahora angu-200 watt wamandla.

Kungani omakhalekhukhwini basebenzisa amahora angu-milliampere esikhundleni sama-watt-awa ukuchaza amabhethri e-lithium angu-18650?

Amaseli ebhethri e-lithium omakhalekhukhwini abaluleke kakhulu, ngoba abantu abaningi abawuqondi umqondo wamahora we-watt. Esinye isizathu ukuthi u-90% wamabhethri e-lithium eselula angamabhethri angu-3.7V polymer. Ayikho inhlanganisela yochungechunge nokuhambisana phakathi kwamabhethri. Ngakho-ke, amandla okuveza okuqondile Ngeke abangele amaphutha amaningi kakhulu.

Omunye u-10% usebenzise i-polymer engu-3.8 V. Nakuba kunomehluko kagesi, kunomehluko kuphela phakathi kuka-3.7 no-3.8. Ngakho-ke, kulungile ukusebenzisa incazelo yebhethri ye-mAh ekukhangiseni ngomakhalekhukhwini.

Angakanani umthamo webhethri lamakhompyutha aphathekayo, amakhamera edijithali, njll.?

I-voltage yebhethri ihlukile, ngakho imakwe ngokucacile ngama-watt-awa: ama-laptops asezingeni eliphansi anebanga lamandla cishe amahora angama-30-40 watt-amahora, amalaptop aphakathi nendawo anobubanzi bamandla obungaba amahora angama-60 watt, futhi aphakeme. amabhethri -ekupheleni anebanga lamandla angu-80. -100 watt-amahora. Uhlu lwamandla amakhamera edijithali luyi-6 kuya ku-15 watt-amahora, futhi omakhalekhukhwini ngokuvamile amahora angu-10 watt.

Ngale ndlela, ungasebenzisa ama-laptops (amahora angama-watt angu-60), omakhalekhukhwini (amahora angu-10 wama-watt) namakhamera edijithali (amahora angu-30 watt) ukundiza eduze komkhawulo.