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Yandisa ubomi bebhetri ye-lithium-ion?

2022-04-08

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Mea Hoolako Uku Uku

Abantu bahlala befakela ukubaluleka okukhulu kumthamo webhetri ye-lithium-ion, ukuze bafezekise ixesha elide lokusebenza kwemveliso kunye nemilinganiselo encinci yomzimba. Nangona kunjalo, kwezinye ii-aplikeshini, ubomi obude bebhetri, ukutshaja okuncinci, okanye iibhetri ezikhuseleke ngakumbi zibaluleke ngaphezu komthamo webhetri. Eli nqaku lichaza iibhetri ezininzi ze-lithium-ion ezinokwandisa kakhulu ubomi bebhetri.

Phantse zonke iimveliso eziphathwayo eziphezulu zisebenzisa ibhetri ye-lithium ion ehlawulekayo kuquka ibhetri ye-lithium ion polymer, ngenxa yezinye iibhetri ezihlawulelwayo, ibhetri ye-lithium ion inobuninzi obunamandla, ibhetri ephezulu. I-voltage, ukuzikhupha, ubomi bomjikelezo omde kakhulu, kunye nokutshaja okulula kunye nokugcinwa. Ukongeza, ngenxa yombane wayo ophezulu ngokwentelekiso (2.

I-9V ukuya kwi-4.2V), iimveliso ezininzi eziphathwayo zinokuqhutywa ngebhetri enye, ngokwenza lula uyilo lwemveliso ngokubanzi. Ukugqiba ukuba ubomi bebhetri ye-lithium-ion okanye ubomi benkonzo abukho naziphi na izinto eziye zandisa okanye zanciphisa ubomi bebhetri, kwaye zihlala zidibanisa izinto ezininzi ukuze zidlale indima.

Ngokwandiswa kobomi bomjikelo, kukho indlela yokwandisa ubomi bebhetri: 1. Ukuziqhelanisa nokukhupha kancinci. Sebenzisa kuphela i-20% okanye i-30% umthamo webhetri phambi kokutshaja, yandisa kakhulu ubomi bomjikelo.

Njengomgaqo jikelele, imijikelo ye-5 ukuya kwi-10 yokukhupha i-shallow discharge cycle 1 epheleleyo. Nangona eminye imijikelo yokukhupha inokufikelela kumawaka, gcina ibhetri igcwele kwaye unciphise ubomi bebhetri. Ukuba kunokwenzeka, umjikelo opheleleyo wokukhupha kufuneka ugwenywe (wehla ukuya kwi-2.

I-5V okanye i-3V, kuxhomekeke kwizinto zekhemikhali). 2. Kuphephe i-100% yokubiza umthamo.

Khetha umbane osezantsi odadayo ukwenza oku. Ukunciphisa amandla ombane adadayo kuya kuqhubekeka nobomi kunye nobomi benkonzo, kwaye iindleko kukunciphisa umthamo webhetri. Amandla ombane adadayo ancitshiswe nge-100mV ukuya kwi-300mV ukwandisa ubomi bexesha le-2 ukuya kumaxesha ama-5 okanye ngaphezulu.

Izixhobo zeekhemikhali zeLithium-ion cobalt zinovelwano ngakumbi kumandla ombane aphezulu adadayo xa kuthelekiswa nezinye izinto zekhemikhali. Ibhetri ye-ion ye-lithium phosphate isezantsi ngokubanzi kunombane odadayo webhetri ye-lithium-ion eqhelekileyo. 3.

Khetha indlela efanelekileyo yokuphelisa ukutshaja. Khetha itshaja usebenzisa ubuncinci bokutshaja okwangoku ukuphelisa (C / 10 okanye C / X), nge-100% yomthamo, inokwandisa ubomi bebhetri. Umzekelo, okwangoku iwela kwi-C / 5 ukuphelisa umjikelo wokutshaja ofana nesiphumo sokuwa kombane odadayo ukuya kwi-4.

1V. Kuzo zombini iimeko, ibhetri ihlawuliswa kuphela malunga ne-85% yomthamo, eyona nto ibalulekileyo ekunqumeni ubomi bebhetri. 4.

Nciphisa ubushushu bebhetri. Nciphisa umlinganiselo wobushushu bebhetri ukwandisa ubomi bebhetri, ngakumbi ukutshaja nge-0 ¡ã C okanye ngaphantsi. Ukutshaja isinyithi ngaphantsi kwe-0 ¡ã C ukukhuthaza ukucwenga kwentsimbi kwibhetri, okunokubangela iisekethe ezimfutshane zangaphakathi, ukuvelisa ubushushu kwaye yenze ibhetri ingazinzi kwaye ingakhuselekanga.

Iitshaja ezininzi zebhetri zinesixhobo esinomlinganiselo wobushushu bebhetri ukuqinisekisa ukuba ayihlawuli kumaqondo obushushu agqithisileyo. 5. Gwema ukutshaja okukhulu kunye nokukhupha okwangoku, kuba oku kuya kunciphisa ixesha lokujikeleza.

Ezinye izinto zeekhemikhali zifanelekile ngakumbi kumbane omkhulu, njenge-lithium ion manganese kunye neebhetri ze-ion ze-lithium phosphate. Umsinga ophakamileyo wenza uxinzelelo olugqithisileyo kwibhetri. 6.

Gwema ukukhupha ubunzulu ngaphantsi kwe-2V okanye i-2.5V, kuba oku kuya kulimaza ngokukhawuleza iibhetri ze-lithium-ion. I-metal plating yangaphakathi inokuthi yenzeke, ebangela ukuba isiphaluka esifutshane senze ukuba ibhetri ingabikho okanye ingakhuselekanga.

Uninzi lweebhetri ze-lithium-ion zinesekethe ye-elektroniki kwipakethi yebhetri. Ukuba uyatshaja okanye uyakhupha, amandla ombane ebhetri angaphantsi kwe-2.5V, ngaphezu kwe-4.

I-3V okanye ukuba umsinga webhetri ungaphezulu komda omiselweyo, isekethe ye-elektroniki iya kuluqhawula uqhagamshelwano lwebhetri. Indlela ekhuthazwayo yokutshaja ibhetri ye-lithium ion kukubonelela ngokuqhubekayo ngoku ¡À 1% ukunyanzeliswa kwebhetri de ibhetri igutyungelwe ngombane, kwaye uyeke ukutshaja. Iindlela ezisetyenziswayo ukufumanisa xa ibhetri igqunywe ngombane ziquka: ukunika ixesha lokutshaja lilonke, ukujonga umsinga wokutshaja okanye ukusebenzisa ezi ndlela zimbini.

Indlela yokuqala isebenzisa uxinzelelo oluqhubekayo lwangoku, kwaye ukuhluka ukusuka kwi-C / 2 ukuya kwi-1C ye-2.5 ukuya kwiiyure ze-3 ukuvumela ibhetri ukuba ihlawule i-100%. Ungasebenzisa umsinga wokutshaja osezantsi, kodwa kuya kuthatha ixesha elide.

Indlela yesibini iyafana nendlela yokuqala, ifuna nje ukubeka iliso ukutshaja okwangoku. Njengoko ibhetri ihlawuliswa, i-voltage iphakama, efana ngqo nendlela yokuqala. Xa amandla ombane ebhetri efikelela kwixabiso lomda weprogram (ekwabizwa ngokuba ngumbane odadayo), umsinga wokutshaja uqala ukwehla.

Xa ikhoyo ngoku iwa, ibhetri ihlawuliswa kwi-50% ukuya kwi-60% yomthamo. I-voltage ejikelezayo iyaqhubeka ide ihlawulwe ngoku ukutshaja kwinqanaba eliphantsi (C / 10 ukuya kwiC / 20), xa ibhetri ihlawuliswa kwi-92% ukuya kwi-99%, umjikelezo wokutshaja uphelile. Okwangoku, kuyimfuneko ukuhlawula ngokukhawuleza (ngaphantsi kweyure eli-1) ukuya kwi-100% yebhetri ye-lithium-ion eqhelekileyo, akukho ndlela yokukhusela.

Akukhuthazwa ukongeza i-voltage eqhubekayo kwibhetri emva kokuba ibhetri igcwele, kuba oku kuya kukhawulezisa ukulahlekelwa ngumthamo osisigxina, kwaye kunokubangela i-lithium metal plating yangaphakathi. Le plating inokukhula ibe ziindlela zesekethe ezimfutshane zangaphakathi, ezibanga ukufudumeza, ukuze ibhetri ingazinzi xa ibhetri ishushu. Ixesha elifunekayo kwiinyanga ezimbalwa.

Ezinye iitshaja zebhetri ze-lithium ion zithembisa ukusebenzisa ukuxhathisa kwe-thermal ukujonga ubushushu bebhetri. Injongo ephambili yoku kukuba, ukuba ubushushu bebhetri bungaphezulu kwe-0 ¡ã C ukuya kwi-40 ¡ã C, ukutshaja akuvumelekanga. Ngokungafaniyo ne-nickelicide okanye i-nickel-metal hydrogen iibhetri, ibhetri ye-lithium ion inobushushu obuncinane kakhulu xa itshaja.

Intsingiselo yoonobumba "C" "C" ligama lebhetri elibonisa umthamo wokukhupha ibhetri ochazwe ngumenzi webhetri, kwaye iyunithi yiMahr. Umzekelo, ibhetri elinganiswe nge-2000mAhR inokuba ngumbane womthwalo we-2000mA ngeyure enye, kwaye umbane webhetri uya kuwela kwi-voltage ye-zero-capacity. Kulo mzekelo, ukutshaja ibhetri nge-C / 2 kuthetha ukutshaja kwi-1000 mA (1A).

Ileta "C" iba yinto ebalulekileyo kwishaja yebhetri, kuba imisela ukutshaja ngokufanelekileyo kunye nobude bexesha elifunekayo kwibhetri. Xa ubuncinci bokutshaja indlela yokuphelisa yangoku ixoxwa, ibhetri ye-2000mAHR kwi-C / 10 iya kuphelisa ixesha lokutshaja xa ukutshaja kwangoku kuhla ngaphantsi kwe-200mA. Iinqununu eziphambili zezinto ezimisela i-voltage ejikelezayo yebhetri yi-electrochemical potential of material esebenzayo esetyenziswa kwi-cathode yebhetri, kunye ne-lithium malunga ne-4V.

Ukonyusa ezinye iikhompawundi kuya kuqhubela phambili okanye kunciphise lo mbane. Into yesibini yibhalansi phakathi kwamandla ebhetri, ubomi bomjikelezo, ubomi bebhetri kunye nokhuseleko. Uninzi lwabavelisi bebhetri ye-lithium-ion bamise i-4.

I-2V yombane edadayo ukuya kweyona bhalansi ilungileyo phakathi komthamo kunye nobomi bomjikelo. Xa usebenzisa i-4.2V njengexabiso elilinganiselweyo (i-voltage ejikelezayo), ibhetri inokubonelela ngokubanzi malunga ne-500 yokutshaja / ukukhupha imijikelezo, kwaye ke amandla ebhetri ayancipha ukuya kuma-80%.

Umjikelo wokutshaja uquka intlawulo epheleleyo kwinkqubo yokukhupha ngokupheleleyo. Iinkqubo ezininzi zokukhuphela ezinganzulwanga kunye zenza umjikelo wentlawulo epheleleyo. Nangona umthamo webhetri uhlawuliswa ukuya ngaphantsi kwe-100% ngokuthoba amandla ombane adadayo okanye owona mbane uphantsi wokutshaja ukuze upheliswe, umthamo webhetri uyathotywa ekuqaleni, kodwa ngenani lemijikelo eyonyuka ukuya kumaxesha angaphezu kwama-500, umthamo webhetri wombane osezantsi odadayo unokugqitha umbane ophakamileyo odadayo.

umthamo webhetri. Ngokumalunga nenani lomthamo kunye nemijikelo yokutshaja, uMzobo 2 ubonisa uthelekiso lombane ocetyiswayo odadayo kunye nokunciphisa amandla ombane adadayo. Ekubeni izinto ezahlukeneyo zeekhemikhali ze-lithium-ion zebhetri kunye nezinye iimeko zinokuchaphazela ubomi bebhetri, ijika eliboniswe kweli phepha liqikelelwa kuphela umjikelo wokutshaja kunye nexabiso lebhetri.

Ngenxa yomahluko omncinci wemathiriyeli yebhetri kunye neendlela zokuvelisa, imathiriyeli yeekhemikhali ezifanayo zebhetri ezivela kubavelisi abohlukeneyo zinokuvelisa isiphumo soku kuchazwe ngasentla, umenzi webhetri uchaza indlela yokutshaja kunye nombane odadayo ekufuneka asetyenziswe ngumsebenzisi wokugqibela ukuhlangabezana nomthamo webhetri. Ubomi bexesha kunye nemigaqo yokhuseleko. Ungacebisi ukutshaja ukuya phezulu kunomthamo wombane odadayo ocetyiswayo.

Iibhetri ezininzi ziqulethe iisekethe zokukhusela iipakethi zeebhetri, ukuba zigqithise i-voltage ephezulu yebhetri, isiphaluka sikhupha okwethutyana uqhagamshelwano lwebhetri. Nje ukuba uqhagamshelwe, qhagamshela ipakethi yebhetri kwitshaja, hlala usete ngokutsha isekethe yokukhusela ipakethi yebhetri. Ixabiso lombane lihlala liprintwa kwibhetri enye, njengebhetri enye ye-3.

6V. Lo mbane awungombane odadayo, kodwa umbane webhetri olinganayo ngexesha lokukhutshwa kwebhetri. Khetha itshaja yebhetri ukwandisa ubomi bebhetri, nangona itshaja yebhetri ayilawuli ukukhutshwa kobunzulu bebhetri, zonke ezi zinto zinefuthe kubomi bebhetri, kwaye ukutshaja okuninzi kunamandla okwandisa ubomi bebhetri, kwaye Ngamanye amaxesha unokwandisa kakhulu ubomi bebhetri.

Ukongezwa kwetshaja yebhetri ubomi bebhetri bumiselwa ikakhulu ngamandla ombane adadayo kunye nendlela yokuphelisa itshaja. Iibhetri ezininzi ze-lithium-ion ze-Lingllet zine-voltage ejikelezayo esisigxina ye-4.2V ¡À 1% (okanye ephantsi), kodwa kukho ezinye iimveliso ze-4.

I-1V kunye ne-4.0V kunye ne-voltages eguqukayo edadayo. Indlela yokutshaja kunye nokukhupha indlela yebhetri ye-lithium-ion: Inkampani yaseLinglrt uFranhoffart isoloko incamathele ukubaluleka okukhulu kumthamo webhetri ye-lithium-ion, ukuze kuphunyezwe iiyure zokusebenza zemveliso ezinde ngowona mlinganiselo umncinci womzimba.

Nangona kunjalo, kwezinye ii-aplikeshini, ubomi obude bebhetri, ukutshaja okuncinci, okanye iibhetri ezikhuseleke ngakumbi zibaluleke ngaphezu komthamo webhetri. Eli nqaku lichaza iibhetri ezininzi ze-lithium-ion ezinokwandisa kakhulu ubomi bebhetri. Phantse zonke iimveliso eziphathwayo eziphezulu zisebenzisa ibhetri ye-lithium ion ehlawulekayo kuquka ibhetri ye-lithium ion polymer, ngenxa yezinye iibhetri ezihlawulelwayo, ibhetri ye-lithium ion inobuninzi obunamandla, ibhetri ephezulu.

I-voltage, ukuzikhupha, ubomi bomjikelezo omde kakhulu, kunye nokutshaja okulula kunye nokugcinwa. Ukongeza, ngenxa yombane wayo ophezulu ngokwentelekiso (2.9V ukuya kwi-4.

2V), iimveliso ezininzi eziphathwayo zinokusebenza ngebhetri enye, ngokwenza kube lula ukuyilwa kwemveliso ngokubanzi. Ukugqiba ukuba ubomi bebhetri ye-lithium-ion okanye ubomi benkonzo abukho naziphi na izinto eziye zandisa okanye zanciphisa ubomi bebhetri, kwaye zihlala zidibanisa izinto ezininzi ukuze zidlale indima. Ngokwandiswa kobomi bomjikelo, kukho indlela yokwandisa ubomi bebhetri: 1.

Ukuziqhelanisa nokukhupha kancinci. Sebenzisa kuphela i-20% okanye i-30% umthamo webhetri phambi kokutshaja, yandisa kakhulu ubomi bomjikelo. Njengomgaqo jikelele, imijikelo ye-5 ukuya kwi-10 yokukhupha i-shallow discharge cycle 1 epheleleyo.

Nangona eminye imijikelo yokukhupha inokufikelela kumawaka, gcina ibhetri igcwele kwaye unciphise ubomi bebhetri. Ukuba kunokwenzeka, umjikelo opheleleyo wokukhupha kufuneka ugwenywe (wehla ukuya kwi-2.5V okanye i-3V, kuxhomekeke kwimichiza yeekhemikhali).

2. Kuphephe i-100% yokubiza umthamo. Khetha umbane osezantsi odadayo ukwenza oku.

Ukunciphisa amandla ombane adadayo kuya kuqhubekeka nobomi kunye nobomi benkonzo, kwaye iindleko kukunciphisa umthamo webhetri. Amandla ombane adadayo ancitshiswe nge-100mV ukuya kwi-300mV ukwandisa ubomi bexesha le-2 ukuya kumaxesha ama-5 okanye ngaphezulu. Izixhobo zeekhemikhali zeLithium-ion cobalt zinovelwano ngakumbi kumandla ombane aphezulu adadayo xa kuthelekiswa nezinye izinto zekhemikhali.

Ibhetri ye-ion ye-lithium phosphate isezantsi ngokubanzi kunombane odadayo webhetri ye-lithium-ion eqhelekileyo. 3. Khetha indlela efanelekileyo yokuphelisa ukutshaja.

Khetha itshaja usebenzisa ubuncinci bokutshaja okwangoku ukuphelisa (C / 10 okanye C / X), nge-100% yomthamo, inokwandisa ubomi bebhetri. Umzekelo, okwangoku iwela kwi-C / 5 ukuphelisa umjikelo wokutshaja ngokufana nesiphumo sokuwa kombane odadayo ukuya kwi-4.1V.

Kuzo zombini iimeko, ibhetri ihlawuliswa kuphela malunga ne-85% yomthamo, eyona nto ibalulekileyo ekunqumeni ubomi bebhetri. 4. Nciphisa ubushushu bebhetri.

Nciphisa umlinganiselo wobushushu bebhetri ukwandisa ubomi bebhetri, ngakumbi ukutshaja nge-0 ¡ã C okanye ngaphantsi. Ukutshaja isinyithi ngaphantsi kwe-0 ¡ã C ukukhuthaza ukucwenga kwentsimbi kwibhetri, okunokubangela iisekethe ezimfutshane zangaphakathi, ukuvelisa ubushushu kwaye yenze ibhetri ingazinzi kwaye ingakhuselekanga. Iitshaja ezininzi zebhetri zinesixhobo esinomlinganiselo wobushushu bebhetri ukuqinisekisa ukuba ayihlawuli kumaqondo obushushu agqithisileyo.

5. Gwema ukutshaja okukhulu kunye nokukhupha okwangoku, kuba oku kuya kunciphisa ixesha lokujikeleza. Ezinye izinto zeekhemikhali zifanelekile ngakumbi kumbane omkhulu, njenge-lithium ion manganese kunye neebhetri ze-ion ze-lithium phosphate.

Umsinga ophakamileyo wenza uxinzelelo olugqithisileyo kwibhetri. 6. Kuphephe ukukhupha ubunzulu obungaphantsi kwe-2V okanye i-2.

5V, kuba oku kuya kulimaza ngokukhawuleza iibhetri ze-lithium-ion. I-metal plating yangaphakathi inokuthi yenzeke, ebangela ukuba isiphaluka esifutshane senze ukuba ibhetri ingabikho okanye ingakhuselekanga. Uninzi lweebhetri ze-lithium-ion zinesekethe ye-elektroniki kwipakethi yebhetri.

Ukuba iyatshaja okanye iyakhupha, amandla ombane ebhetri angaphantsi kwe-2.5V, ngaphezulu kwe-4.3V okanye ukuba ibhetri yangoku idlula umda omiselweyo, isekethe ye-elektroniki iya kuqhawula uqhagamshelo lwebhetri.

Indlela ekhuthazwayo yokutshaja ibhetri ye-lithium ion kukubonelela ngokuqhubekayo ngoku ¡À 1% ukunyanzeliswa kwebhetri de ibhetri igutyungelwe ngombane, kwaye uyeke ukutshaja. Iindlela ezisetyenziswayo ukufumanisa xa ibhetri igqunywe ngombane ziquka: ukunika ixesha lokutshaja lilonke, ukujonga umsinga wokutshaja okanye ukusebenzisa ezi ndlela zimbini. Indlela yokuqala isebenzisa uxinzelelo oluqhubekayo lwangoku, kunye nokwahlukana ukusuka kwi-C / 2 ukuya kwi-1C ye-2.

Iiyure ezi-5 ukuya kwezi-3 ukuvumela ibhetri itshaje i-100%. Ungasebenzisa umsinga wokutshaja osezantsi, kodwa kuya kuthatha ixesha elide. Indlela yesibini iyafana nendlela yokuqala, ifuna nje ukubeka iliso ukutshaja okwangoku.

Njengoko ibhetri ihlawuliswa, i-voltage iphakama, efana ngqo nendlela yokuqala. Xa amandla ombane ebhetri efikelela kwixabiso lomda weprogram (ekwabizwa ngokuba ngumbane odadayo), umsinga wokutshaja uqala ukwehla. Xa ikhoyo ngoku iwa, ibhetri ihlawuliswa kwi-50% ukuya kwi-60% yomthamo.

I-voltage ejikelezayo iyaqhubeka ide ihlawulwe ngoku ukutshaja kwinqanaba eliphantsi (C / 10 ukuya kwiC / 20), xa ibhetri ihlawuliswa kwi-92% ukuya kwi-99%, umjikelezo wokutshaja uphelile. Okwangoku, kuyimfuneko ukuhlawula ngokukhawuleza (ngaphantsi kweyure eli-1) ukuya kwi-100% yebhetri ye-lithium-ion eqhelekileyo, akukho ndlela yokukhusela. Akukhuthazwa ukongeza i-voltage eqhubekayo kwibhetri emva kokuba ibhetri igcwele, kuba oku kuya kukhawulezisa ukulahlekelwa ngumthamo osisigxina, kwaye kunokubangela i-lithium metal plating yangaphakathi.

Le plating inokukhula ibe ziindlela zesekethe ezimfutshane zangaphakathi, ezibanga ukufudumeza, ukuze ibhetri ingazinzi xa ibhetri ishushu. Ixesha elifunekayo kwiinyanga ezimbalwa. Ezinye iitshaja zebhetri ze-lithium ion zithembisa ukusebenzisa ukuxhathisa kwe-thermal ukujonga ubushushu bebhetri.

Injongo ephambili yoku kukuba, ukuba ubushushu bebhetri bungaphezulu kwe-0 ¡ã C ukuya kwi-40 ¡ã C, ukutshaja akuvumelekanga. Ngokungafaniyo ne-nickelicide okanye i-nickel-metal hydrogen iibhetri, ibhetri ye-lithium ion inobushushu obuncinane kakhulu xa itshaja. Intsingiselo yoonobumba "C" "C" ligama lebhetri elibonisa umthamo wokukhupha ibhetri ochazwe ngumenzi webhetri, kwaye iyunithi yiMahr.

Umzekelo, ibhetri elinganiswe nge-2000mAhR inokuba ngumbane womthwalo we-2000mA ngeyure enye, kwaye umbane webhetri uya kuwela kwi-voltage ye-zero-capacity. Kulo mzekelo, ukutshaja ibhetri nge-C / 2 kuthetha ukutshaja kwi-1000 mA (1A). Ileta "C" iba yinto ebalulekileyo kwishaja yebhetri, kuba imisela ukutshaja ngokufanelekileyo kunye nobude bexesha elifunekayo kwibhetri.

Xa ubuncinci bokutshaja indlela yokuphelisa yangoku ixoxwa, ibhetri ye-2000mAHR kwi-C / 10 iya kuphelisa ixesha lokutshaja xa ukutshaja kwangoku kuhla ngaphantsi kwe-200mA. Iinqununu eziphambili zezinto ezimisela i-voltage ejikelezayo yebhetri yi-electrochemical potential of material esebenzayo esetyenziswa kwi-cathode yebhetri, kunye ne-lithium malunga ne-4V. Ukonyusa ezinye iikhompawundi kuya kuqhubela phambili okanye kunciphise lo mbane.

Into yesibini yibhalansi phakathi kwamandla ebhetri, ubomi bomjikelezo, ubomi bebhetri kunye nokhuseleko. Ijiko lomzekeliso libonisa ubudlelwane phakathi komthamo webhetri kunye nobomi bomjikelezo. Umenzi omtsha.

com Itshaja yaMandla ombane adadayo kunye noMmandla weBetri kunye noBomi beXesha Inkoliso yabavelisi bebhetri ye-Lithium Ion bane-4.2V yombane edadayo ukuze ibe yeyona bhalansi ilungileyo phakathi komthamo kunye nobomi bomjikelezo. Xa usebenzisa u-4.

I-2V njengexabiso elihlala lilinganiselwe (i-voltage ejikelezayo), ibhetri inokubonelela ngokubanzi malunga ne-500 yokutshaja / ukukhupha imijikelezo, kwaye ke amandla ebhetri ayancipha ukuya kuma-80%. Umjikelo wokutshaja uquka intlawulo epheleleyo kwinkqubo yokukhupha ngokupheleleyo. Iinkqubo ezininzi zokukhuphela ezinganzulwanga kunye zenza umjikelo wentlawulo epheleleyo.

Nangona umthamo webhetri uhlawuliswa ukuya ngaphantsi kwe-100% ngokuthoba amandla ombane adadayo okanye owona mbane uphantsi wokutshaja ukuze upheliswe, umthamo webhetri uyathotywa ekuqaleni, kodwa ngenani lemijikelo eyonyuka ukuya kumaxesha angaphezu kwama-500, umthamo webhetri wombane osezantsi odadayo unokugqitha umbane ophakamileyo odadayo. umthamo webhetri. Ngokumalunga nenani lomthamo kunye nemijikelo yokutshaja, uMzobo 2 ubonisa uthelekiso lombane ocetyiswayo odadayo kunye nokunciphisa amandla ombane adadayo.

I-Newmaker.com Ubomi bexesha eliqhelekileyo kunye neCapacity kunye ne-4.2V Voltage ejikelezayo Ekubeni i-lithium-ion ibhetri yezinto zekhemikhali ezahlukeneyo kunye nezinye iimeko zinokuchaphazela ubomi bebhetri, i-curve eboniswe kweli phepha kuphela umjikelo wokutshaja oqikelelweyo kunye nexabiso lebhetri.

I-1V kunye ne-4.0V kunye ne-voltages eguqukayo edadayo. Itheyibhile engezantsi ibonisa ezinye iitshaja zebhetri ezinombane ophantsi odadayo, ezinokwandisa ubomi bebhetri xa utshaja 4.

Ibhetri ye-2V lithium-ion. Ibonelela ngee-voltages ezisezantsi ezidadayo ukwandisa ubomi bebhetri kwiintlawulo zebhetri I-NewMaker.com ayiboneleli ngeetshaja zebhetri ezibonelela ngeenketho zombane ezisezantsi ezidadayo ezinokwandisa ubomi bebhetri.

Ubomi bebhetri bunokwandiswa ngokukhetha ubuncinci bendlela yokuphelisa ukutshaja (C / 10 okanye C / X) ngokukhetha umjikelo wokutshaja ngexabiso elifanelekileyo langoku lokutshaja. C / 10 Ukupheliswa kutshaja kuphela ibhetri ukuya kwi-92% yomthamo wayo, kodwa iya kusebenza kunye nexesha eliqhubekayo. Ukupheliswa kwe-C / 5 kunokuphindwa kabini, kodwa ukutshaja kwebhetri kuncitshiswe ngakumbi malunga ne-85% yomthamo.

Ngaba iiyure ezinde zokusebenza kunye nobomi obude bebhetri? Ukuba iteknoloji yebhetri yangoku isetyenzisiweyo, ayinyusi ubungakanani bebhetri, ngoko impendulo ayikwazi. Ukufezekisa elona xesha lide lokusebenza, itshaja kufuneka itshaje ibhetri ukuya kwi-100% yomthamo. Ngeli xesha, amandla ombane ebhetri asondele kumbane odadayo ocetyiswa ngumenzi, ngokwesiqhelo 4.

2V ¡À 1%. Ngelishwa, ukutshaja ibhetri kweli xabiso lombane kunye nokugcina ubomi bebhetri kweli xabiso lombane. Enye indlela kukukhetha i-voltage esezantsi edadayo, ukuthintela ukutshaja kwebhetri i-100%, kodwa oku kufuna umthamo ophezulu webhetri ukufezekisa ixesha elifanayo lokusebenza elide.

Ewe, kwiimveliso ezininzi eziphathwayo, awunakukhetha ibhetri enkulu. Ukusetyenziswa kweC / 10 okanye C / X ubuncinci bendlela yokuphelisa ukutshaja iyafana nobomi bebhetri njengobomi bebhetri. I-voltage ejikelezayo iyancipha nge-100mV, eya kuncitshiswa malunga ne-15%, kodwa ubomi bomjikelezo bunokwandiswa.

Ngelo xesha, umbane wokutshaja uyancipha ukuya kwi-20% (C / 5), kwaye umthamo ubuye uncitshiswe nge-15%, kwaye ubomi bomjikelezo bunokwandiswa. I-voltage yebhetri ye-lithium-ion eqhelekileyo inokulindelwa, ikhutshwe, icothe xa kukhutshwa. Utshintsho kwijiko lombane lokukhutshwa luxhomekeke kwizinto ezininzi, kubandakanywa ukukhupha ngoku, ubushushu bebhetri, ukuguga kwebhetri, kunye nohlobo lwezixhobo ze-anodic ezisetyenziselwa ibhetri.

Okwangoku, ezininzi iibhetri ze-lithium-ion zisebenzisa i-coke okanye igraphite. Ijika lombane lebhetri ngalinye libonisiwe kumzobo. I-voltage yokukhupha iyahluka ngokubanzi phakathi kwe-20% kunye ne-80% yomthamo we-graphite material, kwaye emva koko iyancipha ngokukhawuleza ekupheleni, kwaye i-coke anode ine-slope ye-voltage ephantsi kunye ne-2 ephantsi.

I-5V yokucima amandla ombane. Xa usebenzisa izinto ze-coke, amandla ebhetri asele kulula ukuyiqonda, kwaye i-voltage yebhetri ilinganiswa nje. Kwi-parallel okanye i-series-eqhagamshelwe ibhetri ye-progressive capacity, iibhetri ze-lithium ion zihlala ziqhagamshelwe ngokufanayo.

Ukongeza kwibhetri, kufuneka kusetyenziswe izinto ezifanayo zeekhemikhali, ukusuka kumenzi ofanayo kunye nobukhulu, akukho mfuneko ekhethekileyo. I-tandem eqhagamshelwe ibhetri kufuneka ilumke, kuba umthamo webhetri kunye neesekethe zokulinganisa ibhetri zihlala zifuna ukuqinisekisa ukuba ibhetri nganye ifikelela kumbane odadayo ofanayo kunye nenqanaba lokutshaja elifanayo. Qhagamshelana neebhetri ezimbini kuthotho (kunye neesekethe zokukhusela iibhetri ezihambelanayo) azikhuthazwa, ngenxa yokungahambelani komthamo, ngaloo ndlela uqhawula uqhagamshelo lwebhetri.

Ukongeza, iipakethi ezininzi zeebhetri ezidityanisiweyo kumenzi webhetri kufuneka zithengwe kumenzi webhetri. Ubomi beli phepha bumiselwa yimiba emininzi, kwaye okona kubaluleke kakhulu, izinto zekhemikhali zebhetri, ubunzulu bokukhutshwa, ubushushu bebhetri kunye nexabiso lokuphelisa umthamo webhetri. I-100% umthamo webhetri ukutshaja kumvelisi unokufikelela kwinani lentlawulo epheleleyo / imijikelo yokukhupha ebhengezwe ngumenzi.

Khetha itshaja ethembisa ukuhlawulisa umthamo ongaphantsi kwe-100%, iya kwenza isicelo esifuna ukwandisa ubomi bebhetri sixhamle kakhulu, oku kuphunyezwa ngokukhetha itshaja yebhetri enombane ophantsi odadayo okanye isiphelo sangaphambili ch.

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