Isingeniso:
Selokhu angena emakethe,amabhethri e-lithiumzisetshenziswe kabanzi ngezinzuzo zazo ezifana nempilo ende, umthamo othize omkhulu, futhi awukho umphumela wenkumbulo. Uma esetshenziswa emazingeni okushisa aphansi, amabhethri e-lithium-ion anezinkinga ezifana nomthamo ophansi, ukuncishiswa okukhulu, ukusebenza kahle kwezinga lomjikelezo, imvula ye-lithium esobala, nokufakwa nokukhipha i-lithium okungenakulinganisela. Kodwa-ke, njengoba inkambu yohlelo lokusebenza iqhubeka nokukhula, izithiyo ezilethwa ukusebenza kabi kwezinga lokushisa eliphansi lamabhethri e-lithium-ion ziya ngokuya ziba sobala. Ake sihlole izizathu futhi sichaze indlela yokuphatha amabhethri e-lithium ngendlela efanele ebusika?
Ingxoxo ngezinto ezithinta ukusebenza kwezinga lokushisa eliphansi lamabhethri e-lithium
1. Ithonya le-Electrolyte
I-electrolyte inomthelela omkhulu ekusebenzeni kwezinga lokushisa eliphansi kweamabhethri e-lithium. Ukwakheka kanye nezakhiwo ze-physicochemical ze-electrolyte zinomthelela obalulekile ekusebenzeni kwezinga lokushisa eliphansi kwebhethri. Inkinga ebhekene nomjikelezo webhethri ekushiseni okuphansi ukuthi i-viscosity ye-electrolyte izokhula, ijubane le-ion conduction lizohamba kancane, okuholela ekungalingani kwejubane lokufuduka kwe-electron yesifunda sangaphandle, ngakho-ke ibhethri izoba yi-polarized kakhulu futhi ukushaja nokukhishwa kwamandla kuzokwehla kakhulu. Ikakhulukazi uma ishaja ngezinga lokushisa eliphansi, i-lithium ion ingakha kalula i-lithium dendrites ebusweni be-electrode engalungile, okubangela ukwehluleka kwebhethri.
2. Ithonya lezinto ezingezinhle ze-electrode
- I-polarization yebhethri ibucayi ngesikhathi sokushaja nokushajwa kwezinga lokushisa eliphansi kwezinga eliphezulu, futhi inani elikhulu le-lithium eyinsimbi lifakwa endaweni ye-electrode eyinegethivu. Umkhiqizo wokusabela we-metallic lithium kanye ne-electrolyte ngokuvamile awuhambisani;
- Kusukela ekubukeni kwe-thermodynamic, i-electrolyte iqukethe inani elikhulu lamaqembu e-polar njenge-CO ne-CN, engasabela ngezinto ezingezinhle ze-electrode, futhi ifilimu ye-SEI eyakhiwe iyakwazi ukuthinteka kakhulu ekushiseni okuphansi;
- Kunzima ukuthi ama-electrode e-carbon negative ashumeke i-lithium emazingeni okushisa aphansi, futhi kukhona i-asymmetry ekushajeni nasekukhipheni.
Indlela yokuphatha amabhethri e-lithium ngendlela efanele ebusika?
1. Ungasebenzisi amabhethri e-lithium ezindaweni zokushisa eziphansi
Izinga lokushisa linomthelela omkhulu kumabhethri e-lithium. Ukwehla kwezinga lokushisa, kwehla umsebenzi wamabhethri e-lithium, okuholela ngokuqondile ekunciphiseni okukhulu kokushaja nokukhipha ukusebenza kahle. Ngokuvamile, izinga lokushisa lokusebenza leamabhethri e-lithiumiphakathi kuka -20 degrees no-60 degrees.
Uma izinga lokushisa lingaphansi kuka-0℃, qaphela ukuthi ungakhokhisi ungaphandle. Singakwazi ukuyisa ibhethri endlini ukuze liyoshajwa (qaphela, qiniseka ukuthi uhlala kude nezinto ezivutha umlilo!!!). Uma izinga lokushisa lingaphansi -20℃, ibhethri izongena ngokuzenzakalelayo esimweni sokungalali futhi ayikwazi ukusetshenziswa ngokujwayelekile.
Ngakho-ke, ikakhulukazi kubasebenzisi abasezindaweni ezibandayo enyakatho, uma singekho ngempela isimo sokushaja sasendlini, sebenzisa ngokugcwele ukushisa okusalayo lapho ibhethri likhishwa, futhi uyishaje elangeni ngokushesha ngemva kokupaka ukuze ukhuphule inani lokushaja futhi ugweme imvula ye-lithium.
2. Yakha umkhuba wokushaja njengoba uyisebenzisa
Ebusika, lapho amandla ebhethri ephansi kakhulu, kufanele sikushaje kusenesikhathi futhi sakhe umkhuba omuhle wokushaja njengoba ulisebenzisa. Khumbula, ungalokothi ulinganise amandla ebhethri ebusika ngokuya nempilo yebhethri evamile.
Ebusika, umsebenzi weamabhethri e-lithiumukuncipha, okungabangela kalula ukuchitheka ngokweqile nokushaja ngokweqile, okungase kuthinte impilo yebhethri noma kubangele izingozi zokusha. Ngakho-ke, ebusika, kufanele unake kakhulu ukushaja ngokukhipha okuncane kanye nokushaja okuncane. Ikakhulukazi, ungapaki imoto isikhathi eside ngenkathi ushaja ukuze ugweme ukushaja ngokweqile.
3. Ungahlali kude lapho ushaja. Khumbula ukuthi ungakhokhisi isikhathi eside.
Ungayikhokhisi imoto isikhathi eside ukuze kube lula. Vele uyikhiphe uma isishajwe ngokugcwele. Indawo yokushaja ebusika akufanele ibe ngaphansi kuka-0℃. Uma ushaja, ungasuki kude kakhulu ukuze uvimbele izimo eziphuthumayo futhi ubhekane nazo kusenesikhathi.
4. Sebenzisa ishaja ezinikele kumabhethri e-lithium lapho ishaja.
Imakethe igcwele amashaja ekhwalithi ephansi. Ukusebenzisa amashaja ekhwalithi ephansi kuzodala ukulimala kwebhethri futhi kudale nomlilo. Ungathengi imikhiqizo enenani eliphansi nengavikelekile ngemali ephansi, ingasaphathwa eyokusebenzisa amashaja ebhethri aneasidi yomthofu; uma ishaja yakho ingasetshenziswa ngokujwayelekile, yeka ukuyisebenzisa ngokushesha, futhi ungalahlekelwa yisithombe esikhulu kwabancane.
5. Naka impilo yebhethri futhi uyishintshe kusenesikhathi
Amabhethri e-lithiumube nesikhathi sokuphila. Ukucaciswa okuhlukile namamodeli anesikhathi sokuphila esihlukile. Ngaphezu kwalokho, ngenxa yokusetshenziswa okungafanele kwansuku zonke, impilo yebhethri isukela ezinyangeni ezimbalwa kuye eminyakeni emithathu. Uma imoto iphelelwa amandla noma impilo yebhethri iyimfushane ngokungavamile, sicela uxhumane nabasebenzi abalungisa ibhethri le-lithium kusenesikhathi ukuze uyiphathe.
6. Shiya amandla athile ebusika
Ukuze usebenzise imoto evamile entwasahlobo yonyaka ozayo, uma ibhethri ingasetshenziswa isikhathi eside, khumbula ukuyishaja ku-50% -80%, isuse emotweni ukuze igcinwe, futhi uyikhokhise njalo, cishe kanye ngenyanga. Qaphela: Ibhethri kufanele igcinwe endaweni eyomile.
7. Beka ibhethri ngendlela efanele
Ungacwilisi ibhethri emanzini noma ulenze libe manzi; ungapaki ibhethri izendlalelo ezingaphezu kweziyisi-7, noma uguqule indlela ibhethri elibheke ngakhona.
Isiphetho
Ku--20 ℃, amandla okukhipha amabhethri e-lithium-ion angaba ngu-31.5% kuphela walokho kuzinga lokushisa lekamelo. Izinga lokushisa elisebenzayo lamabhethri e-lithium-ion endabuko liphakathi kuka -20 kanye +55 ℃. Kodwa-ke, emikhakheni ye-aerospace, imboni yezempi, izimoto zikagesi, njll., amabhethri adingeka ukuthi asebenze ngokujwayelekile ku -40 ℃. Ngakho-ke, ukuthuthukisa izinga lokushisa eliphansi lamabhethri e-lithium-ion kubaluleke kakhulu. Yiqiniso, iibhethri ye-lithiumimboni ikhula njalo, futhi ososayensi bayaqhubeka nokutadisha amabhethri e-lithium angasetshenziswa emazingeni okushisa aphansi ukuxazulula izinkinga kumakhasimende.
I-Heltec Energy inguzakwethu omethembayo ekukhiqizeni amaphakethe ebhethri. Ngokugxila kwethu ngokungaphezi ocwaningweni nasekuthuthukisweni, kuhambisana nohlu lwethu olubanzi lwezinsiza zebhethri, sinikeza izixazululo zokuma okukodwa ukuze sihlangabezane nezidingo eziguqukayo zomkhakha. Singakwazi ukwenza ngokwezifiso amabhethri e-lithium ngezimo ezihlukahlukene zamakhasimende. Uma udinga ukuthuthukisa ibhethri lakho le-lithium noma ulungiselele ibhodi lokuvikela, sicela usithinte.
Uma unemibuzo noma ungathanda ukufunda okwengeziwe, sicela ungangabazifinyelela kithi.
Isicelo sokucaphuna:
U-Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
U-Nancy:nancy@heltec-bms.com/ +86 184 8223 7713
Isikhathi sokuthumela: Oct-09-2024