Amavu n'amavuko

Mugihe cyo kwishyuza no gusohora bateri, ubushobozi buzaterwa numuvuduko ukabije uterwa no kurwanya imbere.Nibintu byingenzi bya bateri, kurwanya imbere birakwiye ubushakashatsi bwo gusesengura iyangirika rya batiri.Imbere yo kurwanya bateri irimo:

• Ohm irwanya imbere (R_Ω) -Kurwanya kuva kuri tabs, electrolyte, gutandukanya nibindi bice.
• Kwishyuza kwanduza imbere imbere (R_ct) -Kurwanya ion zinyura tabs na electrolyte.Ibi byerekana ingorane za tabs reaction.Mubisanzwe turashobora kongera ubushobozi bwo kugabanya iyi resistance.
• Kurwanya Polarisiyasi (R_mt) ni ukurwanya imbere guterwa n'ubucucike butaringaniye bwa lithium ion hagaticathodena anode.Kurwanya Polarisation bizaba byinshi mubihe nko kwishyuza hasiubushyuhecyangwa amafaranga menshi.

Mubisanzwe dupima ACIR cyangwa DCIR.ACIR ni ukurwanya imbere gupimwa muri 1k Hz AC.Uku kurwanya imbere bizwi kandi nka Ohm resistance.Uwitekaubukeneyamakuru ni uko idashobora kwerekana mu buryo butaziguye imikorere ya bateri.DCIR ipimwa ningufu zihoraho mugihe gito, aho voltage ikomeza guhinduka.Niba akanya ako kanya ari I, kandi ihinduka rya voltage muricyo gihe gito niΔＵ, ukurikije amategeko ya OhmＲ ＝ ΔＵ ／ ＩTurashobora kubona DCIR.DCIR ntabwo ireba Ohm gusa imbere, ariko kandi irwanya kwimurwa no kurwanya polarisiyasi.

Isesengura ku bipimo by'Ubushinwa n'ibindi bihugu

It's burigihe bigoye kubushakashatsi bwa DCIR ya bateri ya lithium-ion.Ni's ahanini kubera ko imbere ya batiri ya lithium-ion ari nto cyane, mubisanzwe mΩ.Hagati aho nkibigize ibikorwa, biragoye gupima imbere imbere.Byongeye kandi, kurwanya imbere byatewe nuburyo ibidukikije bimeze, nkubushyuhe nubushyuhe.Hano haribipimo byavuzwe kubyerekeranye no gupima DCIR.

• Ibipimo mpuzamahanga:

IEC 61960-3: 2017:Secondary selile na batteri zirimo alkaline cyangwa izindi electrolytite idafite aside - Secondary lithium selile na batteri zikoreshwa - Igice cya 3: Lisiyumu ya Prismatic na silindrike selile na bateri zakozwe muri zo.

IEC 62620: 2014:Secondary selile na batteri zirimo alkaline cyangwa izindi electrolytite idafite aside - Secondary lithium selile na bateri zo gukoresha mubikorwa byinganda.

• Ubuyapani:JIS C 8715-1: 2018: Secondary lithium selile na bateri zo gukoresha mubikorwa byinganda - Igice cya 1: Ibizamini nibisabwa mubikorwa
• Ubushinwa ntabwo bufite ibipimo bifatika bijyanye no gupima DCIR.

Ubwoko

Uburyo bwo kwipimisha burasa muriIEC 61960-3: 2017,IEC 62620: 2014naJIS C 8715-1: 2018.Itandukaniro nyamukuru ni nkibi bikurikira:

1. Kugerageza ubushyuhe buratandukanye.IEC 62620: 2014 naJIS C 8715-1: 2018agenga 5℃hejuru yubushyuhe bwibidukikije kuruta IEC 61960-3: 2017.Ubushyuhe bwo hasi buzatuma burushaho kuba bwiza bwa electrolyte, izatera umuvuduko muke wa ion.Gutyo, imiti yimiti izagenda gahoro, kandi kurwanya Ohm no kurwanya polarisiyasi bizaba binini, bizatera impinduka ya DCIR.
2. SoC iratandukanye.SoC isabwa muriIEC 62620: 2014naJIS C 8715-1: 2018ni 50％ ±10％, mu giheIEC 61960-3: 2017ni 100%.Imiterere yishyurwa irakomeye cyane kuri DCIR.Mubisanzwe ibisubizo bya DCIR bizagabanuka hamwe no kwiyongera kwa SoC.Ibi bifitanye isano nuburyo bwo kubyitwaramo.Muri SoC yo hasi，kwishyurwa kwimurwaR_ct bizaba hejuru;naR_ct bizagabanuka no kwiyongera kwa SoC, nkuko DCIR.
3. Igihe cyo gusohora kiratandukanye.IEC 62620: 2014 na JIS C 8715-1: 2018 bisaba igihe kirekire cyo gusohora kurutaIEC 61960-3: 2017.Igihe kirekire cya pulse kizatera kugabanuka gukabije kwa DCIR, no kwerekana gutandukana kumurongo.Impamvu nuko kwiyongera kwigihe cya pulse bizatera hejuruR_ct hanyuma ubeyiganje.
4. Imiyoboro isohoka iratandukanye.Nyamara ibyasohotse bisohora ntabwo byanze bikunze bifitanye isano na DCIR.Isano igenwa naiigishushanyo.
5. NubwoJIS C 8715-1: 2018bivugaIEC 62620: 2014, bafite ibisobanuro bitandukanye kuri bateri zapimwe.IEC 62620: 2014isobanura ko bateri zapimwe cyane zishobora gusohora munsi ya 7.0C yumuriro.WhileJIS C 8715-1: 2018isobanura bateri zapimwe cyane nizo zishobora gusohora hamwe na 3.5C.

Isesengura ku Kwipimisha

Hasi nigishushanyo mbonera cya voltage-igihe cyibipimo byo gupima DCIR.Umurongo werekana kurwanya selile, kugirango dusuzume imikorere.

• Nkuko bigaragara ku ishusho, imyambi itukura irerekanaR_Ω. Agaciro kajyanye na iR-guta.iR-guta bisobanura impinduka zitunguranye za voltage nyuma yimpinduka zubu.Mubisanzwe iyo selile ifite amashanyarazi, ngaho'sa igitonyanga cya voltage.Turashobora kumenya koR_Ω ya selire ni0.49mΩ.
• Icyatsi kibisi kigereranyaR_ct. R_ct naR_mt ukeneye igihe runaka kugirango ukore.Mubisanzwe bibaho nyuma yigitonyanga cya Ohm.Agaciro kaR_ct irashobora gupimwa 1ms nyuma yimpinduka zubu.Agaciro ni0.046mΩ.MubisanzweR_ct bizagabanuka hamwe no kuzamura SoC.
• Umwambi w'ubururu ugereranya impinduka yaR_mt. Umuvuduko ukomeza kugabanuka kubera lithium-ion idakwirakwira.Agaciro kaR_mt is 0.19mΩ 

Umwanzuro

Ikizamini cya DCIR kirashobora kwerekana imikorere ya bateri.Ni's nayo ibipimo byingenzi kuri R&D.Icyakora hariho ibibazo bimwe na bimwe bigomba gusuzumwa kugirango ugumane neza ibipimo.

• Inzira yo guhuza hagati ya bateri no kwishyuza no gusohora ibikoresho igomba gutekerezwa.Kwihuza guhuza bigomba kuba bike bishoboka (tekereza bitarenze0.02mΩ).
• Ihuza rya voltage ninsinga zo gukusanya nabyo ni ngombwa.It byaba byiza guhuza kuruhande rumwe rwa tabs.Twibuke ko idahuza insinga zo gukusanya ninsinga zishyuza ibikoresho.
• Ibikoresho byo kwishyuza no gusohora hamwe nigihe cyo gusubiza nabyo bigomba kwitabwaho.Igihe cyo gusubiza kiratangwa kitarenze 10m.Igihe gito cyo gusubiza, nukuri kubisubizo.