Isingeniso：
Inkinga eyinhloko ekulungisweni kwebhethri kanye nokusetshenziswa kokunwetshwa kwephakethe lebhethri le-lithium ukuthi ngabe amasethi amabili noma ngaphezulu amaphakethe ebhethri le-lithium angaxhunywa ngqo ochungechungeni noma ngokulingana. Izindlela zokuxhuma ezingalungile azikwazi nje kuphela ukuholela ekunciphiseni ukusebenza kwebhethri, kodwa futhi zingase zibangele izingozi zokuphepha ezifana nama-short circuits kanye nokushisa ngokweqile. Okulandelayo, sizohlaziya ngokuningiliziwe izindlela ezifanele kanye nezinyathelo zokuphepha zokuxhuma amaphakethe ebhethri le-lithium kusuka kokubili emibonweni efanayo kanye neyochungechunge.
Ukuxhumeka okufanayo kwephakethe lebhethri le-lithium: ukugcizelela okulinganayo ezimweni nasekuvikelweni
Ukuxhumana okuhambisanayo kwamaphakethe ebhethri le-lithium kungahlukaniswa ngezimo ezimbili, okuyinhloko yazo ukuthi amapharamitha ephakethe lebhethri ayahambisana yini nokuthi ngabe kuthathwe izinyathelo zokuzivikela ezidingekayo.
（1） Uxhumano oluqondile oluhambisanayo lapho amapharamitha ehambisana
Uma i-voltage, umthamo, ukumelana kwangaphakathi, imodeli yeseli kanye nezinye izici zamasethi amabili amaphakethe ebhethri le-lithium zifana ncamashi, ukusebenza okuhambisanayo kungenziwa ngqo. Isibonelo, amasethi amabili amaphakethe ebhethri le-lithium anesakhiwo sochungechunge olu-4 kanye ne-voltage ejwayelekile engu-12V, uma eshajwe ngokugcwele futhi ene-voltage efanayo, angaxhunywa ngokuhambisana ngokuxhuma i-pole yawo ephelele e-pole ephelele kanye ne-pole ephelele e-negative e-pole ephelele. Kufanele kugcizelelwe ukuthi iphakethe ngalinye lebhethri kumele lifakwe ibhodi lokuvikela elizimele ukuqinisekisa imisebenzi yokuvikela ibhethri eningi, ekhipha kakhulu, kanye neye-short-circuit.
（2） Uhlelo oluhambisanayo lapho amapharamitha engahambisani
Enqubweni yokulungisa yangempela, kuvamile ukuhlangana namaphakethe ebhethri akhiwe ngamaqoqo ahlukene amaseli, noma ngabe i-voltage ejwayelekile ifana (njenge-12V), kunomehluko kumthamo (50Ah kanye ne-60Ah) kanye nokumelana kwangaphakathi. Kulesi simo, ukuxhumana okuqondile okuhambisanayo kuzoletha izingozi ezinkulu - lapho ama-voltage amaqembu amabili ebhethri ehlukene (njenge-14V kanye ne-12V), iqembu lebhethri elinama-voltage aphezulu lizoshaja ngokushesha iqembu lebhethri elinama-voltage aphansi. Ngokusho koMthetho ka-Ohm, uma ukumelana kwangaphakathi kwephakethe lebhethri elinama-voltage aphansi kungu-2 Ω, ugesi wokushaja ohambisanayo ongafinyelela ku-1000A, okungabangela kalula ukuthi ibhethri lishise, liqhume, noma libambe umlilo.
Ukuze kubhekane nalesi simo, amadivayisi okuvikela ahambisanayo kumele engezwe:
Khetha ibhodi lokuvikela elinomsebenzi wokukhawulela wamanje owakhelwe ngaphakathi: Amanye amabhodi okuvikela aphezulu anezici zokukhawulela zamanje ezifanayo, ezingakhawulela ngokuzenzakalelayo umkhawulo wamanje wokushaja ohlangene ngaphakathi kobubanzi obuphephile.
Ukufaka imodyuli yokunciphisa yamandla kagesi ehambisanayo yangaphandle: Uma ibhodi lokuvikela lingenalo lo msebenzi, imodyuli yokunciphisa yamandla kagesi eyengeziwe ingalungiselelwa ukulawula amandla kagesi ezingeni elifanele nokuqinisekisa ukuxhumana okuphephile.
Ukuxhumeka kochungechunge lwebhethri le-lithium: izidingo eziphezulu kanye nokwenza ngokwezifiso
Uma kuqhathaniswa nokuxhumeka okuhambisanayo, ukuxhumeka kochungechunge lwamaphakethe ebhethri e-lithium kudinga izidingo eziqinile zokuvumelana kwephakethe lebhethri. Uma kuxhunywe ochungechungeni, kungafaniswa nenqubo yokuhlanganisa amaseli ebhethri angaphakathi ephaketheni lebhethri, edinga amapharamitha ahambisanayo kakhulu njenge-voltage, umthamo, ukumelana kwangaphakathi, kanye nesilinganiso sokukhipha amandla phakathi kwamaphakethe amabili ebhethri. Ngaphandle kwalokho, ukusatshalaliswa kwamandla kagesi okungalingani kungase kwenzeke, kusheshise ukuguga kwamaphakethe ebhethri angasebenzi kahle.
Ngaphezu kwalokho, i-voltage iyonke ngemva kokuxhumeka kochungechunge iyisamba se-voltage yeqembu elilodwa (njengezisethi ezimbili zamabhethri angu-12V axhunywe ochungechungeni lwe-24V), okubeka izidingo eziphakeme enanini le-voltage yokumelana ye-Mos tube ebhodini lokuvikela. Amabhodi okuvikela ajwayelekile ngokuvamile afaneleka kuphela kumaqembu e-voltage eyodwa. Uma esetshenziswa ochungechungeni, kuvame ukudingeka ukwenza ngezifiso amabhodi okuvikela ane-voltage ephezulu noma ukhethe izinhlelo zokuphatha amabhethri zobungcweti (i-BMS) ezisekela izintambo eziningi ukuqinisekisa ukuphepha nokuzinza kwephakethe lebhethri elixhunywe ochungechungeni ngesikhathi sokushaja nokukhipha.
Amathiphu Okuphepha Neziphakamiso Eziwusizo
Ukuxhumeka okuhambisanayo okungahleliwe akuvunyelwe ngokuphelele: Amaphakethe ebhethri le-lithium ezinhlobo ezahlukene nama-batch awavunyelwe ukuxhunywa ngqo ngaphandle kokwelashwa ngenxa yokwehluka kwezici zamakhemikhali nezinqubo zamaseli ebhethri.
Ukuhlolwa nokugcinwa okuvamile: Uhlelo oluhambisanayo ludinga ukuhlola i-voltage yebhethri njalo ngenyanga, futhi uma umehluko udlula u-0.3V, ludinga ukushajwa ngokwehlukana ukuze lulinganise; Kunconywa ukulinganisela ngenkuthalo uhlelo lochungechunge nge-BMS njalo ngekota.
Khetha izesekeli zekhwalithi ephezulu: Kuyadingeka ukusebenzisa amabhodi okuvikela kanye ne-BMS eqinisekiswe yi-UN38.3, CE, njll. Intambo yokuxhuma kufanele ikhethwe ngobubanzi bentambo obufanele ngokuya ngomthwalo wamanje ukuze kugwenywe ukushisa okubangelwa ukulahleka kwentambo.
Ukusebenza okuhambisanayo kochungechunge lwamaphakethe ebhethri le-lithium kufanele kusekelwe ekuphepheni, kulawula ngokuqinile ukuhambisana kwamapharamitha ephakethe lebhethri, kanye nokubambisana namadivayisi okuvikela ochwepheshe. Ukuqonda la maphuzu abalulekile akugcini nje ngokuthuthukisa ukusebenza kahle kokulungiswa kwebhethri, kodwa futhi kuqinisekisa ukusebenza okuzinzile kwesikhathi eside kwamaphakethe ebhethri le-lithium.
Isicelo Sekhotheshini:
UJacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
UNancy:nancy@heltec-energy.com/ +86 184 8223 7713
Isikhathi sokuthunyelwe: Meyi-23-2025