Iphakethe lebhethri le-lithium iron phosphateithandwa abalandeli abaningi ngenxa yesisindo sayo esilula ngaphansi komthamo ofanayo, amandla ebhethri ye-lithium ingenye yezinkomba zokusebenza ezibalulekile zokulinganisa ukusebenza kwebhethri, lapho ikhipha, i-voltage yebhethri ye-lithium izokwehla kancane kancane ngokuhamba kwebhethri. amandla, futhi kukhona i-slope enkulu.Leli phepha lizoxazulula imfihlakalo ye-voltage kanye nomthamo webhethri ye-lithium iron phosphate.
1) umthamo webhethri we-lithium iron phosphate:
Umthamo wephakethe lebhethri le-lithium ungenye yezinkomba zokusebenza ezibalulekile zokulinganisa ukusebenza kwebhethri, kukhombisa amandla akhishwe ibhethri ngaphansi kwezimo ezithile (izinga lokuphuma, izinga lokushisa, ukuphelelwa amandla kwamandla, njll.) (angasebenzisa i-JS-150D ukuze ikhishwe test), okungukuthi, umthamo webhethri, ngokuvamile ngamahora.Umthamo webhethri ye-lithium uhlukaniswe umthamo wangempela, umthamo wethiyori kanye nomthamo olinganisiwe ngokuvumelana nezimo ezahlukene.Ifomula yokubala yomthamo webhethri C ithi C= t0It1dt, futhi ibhethri ihlukaniswe yaba ama-electrode aqondile kanye nama-negative.

2) Ibhethri ye-lithium iron phosphate:

Ibhethri ye-lithium iron phosphate ibhekisela ebhethri ye-lithium-ion esebenzisa i-lithium iron phosphate njenge-cathode material.Izinto ze-cathode zebhethri ye-lithium ion ikakhulukazi zihlanganisa i-lithium cobalt oxide, i-lithium manganese oxide, i-lithium nickel acid, izinto ze-ternary, i-lithium iron phosphate nokunye. .
I-voltage yokushaja yephakethe yebhethri ye-lithium iron phosphate kufanele isethwe ku-3.65v, i-voltage yegama 3.2v, i-voltage yokushaja ephezulu ingaba ngu-20% ngaphezu kwamandla kagesi, kodwa i-voltage iphezulu kakhulu ukulimaza ibhethri, i-voltage engu-3.6v iphansi kunale nkomba, ayikhokhisi ngokweqile.Iphakethe lebhethri le-lithium uma isetha ubuncane besidingo sokushajwa okungu-3.0v, bese kuthi i-3.4v kunenani eliphansi elingu-0.4v, i-0.6v kuno-0.6 v ingakhulula uhhafu wamandla, okusho ukuthi, yonke inkokhiso, isikhathi sokusebenzisa isikhathi esingaphezu kwe-3.4v, ngoba izikhathi zokusebenzisa ibhethri, ngakho-ke impilo yanda ngesigamu, ngakho-ke uma kwenzeka ungalimazi ibhethri, ukwandisa ukushaja kwe-voltage, kuzokwandisa impilo yebhethri ye-lithium.

3) Buyini ubudlelwano phakathi kwe-voltage yephakethe kanye nomthamo wephakethe lebhethri le-lithium iron phosphate?
Ngokuvamile, ukuphakama kwe-voltage yokushaja nokukhipha iphakethe lebhethri ye-lithium iron phosphate, kuyanda amandla ayo.I-voltage yokushaja nokukhipha amabhethri e-lithium ezinto ezihlukene ahlukile, futhi ephansi kunazo zonke ibhethri ye-lithium iron phosphate.Njengomthamo iyancipha, i-voltage iyancipha, futhi amandla amancane lapho i-voltage ingaphansi kwesilinganiso.
1. Ngebhethri elifanayo, elinomthamo ofanayo oyinsalela, inani lamandla kagesi liyahlukahluka ngenxa yobukhulu bamanje okuphumayo.Lapho ibhethri liphakeme, i-voltage iyancipha.Uma ungekho amandla amanje, amandla kagesi aphezulu kakhulu akhona. .
2. Umthelela wezinga lokushisa elizungezile ku-voltage yephakethe yebhethri ye-lithium.Uma izinga lokushisa liphansi, i-voltage yebhethri yehla ngomthamo ofanayo.
3. Umthelela womjikelezo kuplathifomu yokukhipha ibhethri.Njengoba umjikelezo uqhubeka, isiteji sokukhipha ibhethri ye-lithium-ion sivame ukuwohloka.Isiteji sokukhipha siyancipha.Ngakho umthamo omelelwa yi-voltage efanayo nawo ushintsha ngokufanele.
4. Abakhiqizi abahlukene, umthamo ohlukile wamabhethri e-lithium ion, amapulatifomu abo okukhipha ahluke kancane.
5. Isiteji sokukhishwa kwezinhlobo ezahlukene zezinto ze-electrode zihluke kakhulu.I-lithium cobalt ne-manganese lithium discharge platforms zihluke ngokuphelele.
Konke lokhu kuzodala ukushintshashintsha kwamandla kagesi kanye nokwehluka kwe-voltage, kwenze umthamo wephakethe lebhethri le-lithium iron phosphate ukhombise ukungazinzi.

Umthamo webhethri ye-lithium ubhekisela kusayizi wamandla okugcina ibhethri.I-voltage ye-lithium iron phosphate battery pack ibilokhu incipha ngesikhathi senqubo yokukhipha, njengebhethri engu-3.6v, 19ah, 19ah umthamo awubekwa ku-0v, kodwa 2. amaningana noma 3. Uma, umthamo wokukhipha u-19ah, uma ubeka ku-0v, umthamo uzoba ngaphezu kwe-19, futhi ubeke, uzolimaza impilo yebhethri.

100%—-4.20V100%—-4.20V
90%—–4.06V90%—–3.97V
80%—–3.98V80%—–3.87V
70%—–3.92V70%—–3.79V
60%—–3.87V60%—–3.73V
50%—–3.82V50%—–3.68V
40%—–3.79V40%—–3.65V
30%—–3.77V30%—–3.62V
20%—–3.74V20%—–3.58V
10%—–3.68V10%—–3.51V
5%——3.45V5%——3.42V
0%——3.00V0%——3.00V

Okungenhla ubuhlobo phakathi kwe-lithium iron phosphate battery pack voltage kanye nomthamo, uma ingekho yamanje, i-voltage iphezulu kakhulu, izinga lokushisa eliphansi, i-voltage ephansi yomthamo ofanayo webhethri ye-lithium.Ngokuvamile, ukuphakama okuphezulu i-voltage yokushaja kanye nokukhipha amabhethri e-lithium iron phosphate, amandla ayo amakhulu.