I-Waterma ikwandisa kanjani izinga lokushisa eliphansi lamabhethri e-lithium iron phosphate ion?

著者：Iflowpower – Fornitur Portable Power Station

Ezinsukwini ezimbalwa ezedlule, ku-7th Global New Energy Automobile Conference (GNEV7), IPhini Lomphathi Jikelele we-Watma u-Rao Minmin Lishicilele ingqikithi ethi "Ucwaningo Lwezinto Ezithintayo Ezithinta Ibhethri Le-Lithium Ion le-Lithium Ion". Okuqukethwe kuhlelwe kanje: Okokuqala, i-Rao Minmin yethulwa, i-Watma yasungulwa ngo-2002, indlunkulu e-Shenzhen. Njengamanje kunabasebenzi abangaphezu kwe-12,000, kanye neqoqo lokuqala lezinkampani zebhethri ezingena ku-directory yebhethri ye-lithium-ion enamandla ku-Ministry of Industry and Information Technology, kuhlanganise namabhethri e-Watma angaphezu kuka-50,000 asebenza emgwaqeni.

Njengamanje, amabhethri amaningi e-lithium-ion anamandla emkhakheni wezimoto zomgibeli kagesi yi-lithium iron phosphate. U-Rao Dingmin uthe kunezinzuzo ezimbalwa zokuqhathanisa ze-lithium iron phosphate: impilo yomjikelezo nokukhulisa kungcono, kodwa izinga lokushisa eliphansi lizoba lide kancane kunezinye izinhlelo zebhethri. Okwesibili, imoto yamanje kagesi inomehluko omkhulu kumazinga okushisa ahlukene.

Izimoto zikagesi ezikwazi ukugijima amakhilomitha angu-160 ekamelweni lokushisa zingafinyelela ku--20 degrees kuphela zigijima amakhilomitha angu-60-80, futhi ukusebenza kahle kusobala kakhulu. Okwesibili, inkinga yokushisa okuphansi kokushaja ebusika, okuhlanganisa okunzima ukushaja, izigameko zokuphepha. Ngebhethri ye-ion ye-lithium iron phosphate, i-Watma yenze ucwaningo oluningiliziwe mayelana nezici zayo zokushisa eziphansi: enye ithonya le-electrode enhle, i-electrode ye-phosphate positive ngokwayo i-electron conductivity empofu, futhi i-polarization ingase ikhule, inciphise umthamo wokudlala; okwesibili okungalungile, isigxobo esibi lokhu kubalulekile ekushajeni okuphansi kwezinga lokushisa, ngoba kuzothinta izindaba zokuphepha; okwesithathu yingxenye ye-electrolyte, ingase ikhule ekushiseni okuphansi, i-lithium ion yokufuduka impedance izokhula; Okwesine yi-binder, okwamanje ethinteka kakhulu ekusebenzeni okuphansi kwezinga lokushisa kwebhethri.

Umqondo wonke we-Watma uvela ku-electrode ephozithivu, i-electrode engemihle, i-electro-hydraulic, kanye ne-adhesive enamacezu amane aphansi okushisa okusebenzayo kwebhethri ye-ion ye-lithium iron phosphate. Mayelana nephozithivu, manje isiyi-nanomechanical, usayizi wayo wezinhlayiyana, ukumelana, kanye nabatshali be-axis planar ye-AB kuzothinta izici zayo yonke izinga lokushisa eliphansi lebhethri. I-lithium lithium iron phosphate ilungiswa ngezinqubo ezintathu.

Kusukela kuzo zonke izimo zethu zokulungiselela, inqubo ehlukene ye-lithium iron phosphate nano-coated, sibheka kusukela ku-axis ye-AB, i-lithium eyandayo Isiteshi sokufuduka se-ion sizoba sikhulu, esizosiza ukuthuthukisa ukusebenza kwebhethri. Izinqubo ezahlukene zinemiphumela ehlukene ku-electrode enhle, kanye nezici zokushisa eziphansi zebhethri ezenziwe yi-100 kuya ku-200 nano-particle diameter phosphate, engakhulula ama-94% kuma-degrees angu-20, okuyi-diameter ye-nanofence efinyeza indlela yokufuduka, Iphinde ithuthukise ukusebenza kwezinga lokushisa eliphansi nokukhipha, ngoba i-lithide ye-lithide ihlobene ne-electrophosphate ehlobene. Ecabangela izici zokushaja ezivela ku-electrode engalungile, u-Rao Dingyi ukholelwa ukuthi izinga lokushisa eliphansi lokushaja amabhethri e-lithium-ion libalulekile, okuhlanganisa nosayizi wezinhlayiyana zosayizi wezinhlayiyana kanye nephimbo le-electrode engalungile, khetha i-graphite yokwenziwa emithathu ehlukene njenge-electrode engalungile ukuze ufunde ukuhlukana kwezingqimba ezihlukene kanye nama-granules.

Umthelela wendlela eya ezicini zokushisa eziphansi. Kusuka ezintweni ezintathu, i-graphite yokusanhlamvu yongqimba inkulu, kusukela ku-impedance, i-impedance yomzimba kanye ne-ion migration impedance incane kakhulu. Mayelana nokushaja, u-Rao Shanyi ukholelwa ukuthi inkinga yokukhishwa ayinkulu ngaphansi kwezinga lokushisa eliphansi ebusika, kubalulekile ukushaja okuphansi kwezinga lokushisa.

Ngoba ngokwesilinganiso sokugeleza okuvundlile, isilinganiso se-1C noma esingu-0.5C sokugeleza kwesiphambano sibaluleke kakhulu, ekucindezelweni okuqhubekayo ukuze kube yinde kakhulu, ngokuthuthukisa ukuqhathanisa okuthathu okuhlukene kwegraphite, okukodwa kwakho kukhulu ku--20 degree ukushaja isilinganiso sokugeleza okuqhubekayo Okuthuthukisiwe, kusuka ku-40% kuya ku-70%, ukwanda kwesikhala sesendlalelo, kukhona nokuncipha kosayizi wezinhlayiyana. Lesi siqeshana se-electrolyte, ku--20 degrees, -30 degrees, i-electrolyte, i-viscosity eyandayo, futhi ilimaza ukusebenza.

I-Electrolyte evela ezicini ezintathu: i-solvent, i-lithium kasawoti, i-additive. URao Dingmin uthe, “Ngocwaningo, sithole ukuthi i-solvent ithinta izinga lokushisa eliphansi lamabhethri e-lithium iron phosphate ion asuka ku-70%, angaphezulu kuka-90%, kunamaphuzu angaphezu kweshumi nambili; okwesibili, usawoti we-lithium ohlukile unesici esithile sokushaja okuphansi kokushisa nokuphuma. Umthelela.

Silungise uhlelo lwe-solvent kanye nosawoti we-lithium, futhi isithasiselo sokushisa esiphansi singakhuphula umthamo wokukhipha kusuka ku-85% kuya ku-90%, okungukuthi, kulo lonke uhlelo lwe-electrolytic liquid, i-solvent, usawoti we-lithium, kanye nezithasiselo zebhethri yethu ye-lithium ion. Kunomthelela othile ezicini zezinga lokushisa eliphansi, okuhlanganisa namanye amasistimu wezinto ezibonakalayo. “Ukunamathela, uRao Dingyi uthe kunezinhlobo ezintathu, amaphuzu amabili, umugqa.

Lapho ukushaja nokukhipha ama-degree angu-20, amaphuzu amabili cishe enze imijikelezo engaphezu kuka-70 kuya kwengama-80, isigxobo sonke siyisimo esikhona sokuhluleka kokunamathela, futhi ukusetshenziswa kwezibophezelo ezilayini azikho le nkinga. Ngemuva kwalo lonke uhlelo, kusukela ekuthuthukisweni kwe-electrode enhle, i-electrode engalungile, i-electrolyte kuya ku-binder, sinomphumela ongcono ku-lithium iron phosphate ion battery monomer, eyodwa inezici zokushaja, -20, -30, - 40 degrees at lokushisa 0.5C ukushaja isilinganiso samanje samanje singafinyelela ku-62.

9%, - 20 degree lokushisa ukukhishwa kungakhululwa 94%, lokhu ezinye izici zokukhulisa nomjikelezo. Ngokuvamile, izimoto zamandla amasha zingumsebenzi ovamile enyakatho, hhayi kuphela i-monomer yebhethri engaxazulula izinkinga zokushaja, futhi kukhona ukuqanjwa kwe-BMS nge-Pack, kanye nokusungulwa kwemodeli yesiqinisekiso. Qinisekisa izimoto zamandla amasha endaweni yokushisa ephansi yokusebenza evamile enyakatho.

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