How does Waterma increase the low temperature performance of lithium iron phosphate ion batteries?

2022/04/08

Umbhali :Iflowpower-UMboneleli weSikhululo saMandla esiphathwayo

Kwiintsuku ezimbalwa ezidlulileyo, kwiNgqungquthela ye-7 ye-Global New Energy Automobile (GNEV7), iSekela likaMphathi Jikelele we-Watma u-Rao Minmin Upapashe umxholo othi "UPhando kwimiba echaphazelekayo echaphazela ibhetri yeLithium Ion yeLithium Ion". Umxholo uhlelwe ngolu hlobo lulandelayo: Okokuqala, uRao Minmin ungeniswa, i-Watma yasungulwa kwi-2002, ikomkhulu e-Shenzhen. Okwangoku kukho abasebenzi abangaphezu kwe-12,000, kunye nebhetshi yokuqala yeenkampani zebhetri ezingena kwi-lithium-ion battery directory enamandla kwi-Ofisi yoShishino kunye neTekhnoloji yoLwazi, kubandakanywa neebhetri ezingaphezu kwe-50,000 ze-Watma ezihamba endleleni.

Okwangoku, uninzi lweebhetri ze-lithium-ion zamandla kwintsimi yeemoto zabagibeli zombane ziyi-lithium iron phosphate. URao Dingmin uthe kukho iingenelo ezininzi zokuthelekisa i-lithium iron phosphate: ubomi bomjikelo kunye nokwandiswa kubhetele, kodwa ubushushu obuphantsi buya kuba bubude kancinci kunezinye iinkqubo zebhetri. Okwesibini, inqwelo yombane yangoku inomahluko omkhulu kakhulu kumaqondo obushushu ahlukeneyo.

Iimoto zombane ezinokubaleka iikhilomitha ezingama-160 kwiqondo lobushushu begumbi zinokuya kwi--20 degrees kuphela zibaleka iikhilomitha ezingama-60-80, kwaye ukusebenza kakuhle kucace ngakumbi. Okwesibini, ingxaki yokutshaja kweqondo lokushisa eliphantsi ebusika, kubandakanywa nzima ukuhlawula, iziganeko zokhuseleko. Kwibhetri ye-ion ye-ion ye-lithium ye-iron, i-Watma yenze uphando oluthe kratya malunga neempawu zayo zobushushu obuphantsi: enye yimpembelelo ye-electrode efanelekileyo, i-electrode ye-phosphate-positive ngokwayo yi-electron conductivity engafanelekanga, kwaye i-polarization inokuthi inyuke, inciphise. umthamo Dlala; okwesibini okubi, isibonda esibi oku kubalulekile kwintlawulo ephantsi yobushushu, kuba iya kuchaphazela imiba yokhuseleko; eyesithathu iqhekeza le-electrolyte, inokunyusa kwiqondo lokushisa eliphantsi, i-lithium ion impedance yokufuduka iya kwanda; Isine sisibophelelo, okwangoku esichaphazeleka ngakumbi kubushushu obuphantsi bebhetri.

Umbono wonke we-Watma usuka kwi-electrode elungileyo, i-electrode engalunganga, i-electro-hydraulic, kunye ne-adhesive enamaqhekeza amane obushushu obuphantsi bebhetri ye-lithium iron phosphate ion. Ngokumalunga ne-positive, ngoku i-nanomechanically, ubungakanani bayo bamasuntswana, ukuxhathisa, kunye nabavelisi be-AB planar axis baya kuchaphazela iimpawu zobushushu obuphantsi bebhetri. I-lithium lithium iron phosphate ilungiswa ngeenkqubo ezintathu.

Ukususela kwiimeko zethu zonke zokulungiselela, inkqubo ye-lithium ye-iron phosphate eyahlukileyo ye-nano-coated, sibheka kwi-axis ye-AB, i-lithium eyongeziweyo Isiteshi sokufuduka se-ion siya kuba sikhulu, esiza kunceda ukuphucula ukusebenza kwebhetri. Iinkqubo ezahlukeneyo zineempembelelo ezahlukeneyo kwi-electrode elungileyo, kunye neempawu zokukhutshwa kobushushu obuphantsi bebhetri eyenziwe yi-100 ukuya kwi-200 nano-particle diameter phosphate, enokukhulula i-94% kwi-degrees -20, eyi-particle diameter ye-nanofence efinyeza indlela. Ukufuduka, Kwakhona kuphucula ukusebenza kweqondo lokushisa eliphantsi kunye nokukhutshwa, kuba ukukhutshwa kwe-lithium phosphate kuhambelana ne-electrode efanelekileyo. Ukuqwalasela iimpawu zokutshaja kwi-electrode engalunganga, uRao Dingyi ukholelwa ukuba ukutshaja kobushushu obuphantsi kweebhetri ze-lithium-ion kubalulekile, kubandakanywa ubungakanani besuntswana lobungakanani besuntswana kunye nepitch ye-electrode engalunganga, khetha igraphite yokwenziwa ezintathu ezahlukeneyo njenge-electrode engalunganga ukuya. funda izithuba ezahlukeneyo zamaleko kunye neegranule.

Impembelelo yendlela eya kwiimpawu zeqondo lokushisa eliphantsi. Ukusuka kwizinto ezintathu, igraphite yengqolowa yomaleko inkulu, ukusuka kwi-impedance, i-impedance yomzimba kunye ne-ion impedance impedance incinci. Ngokumalunga nokushaja, uRao Shanyi ukholelwa ukuba ingxaki yokukhupha ayikho enkulu phantsi kweqondo lokushisa eliphantsi ebusika, kubalulekile ukuhlawulela ukushisa okuphantsi.

Ngenxa yokuba kwi-horizontal flow ratio, i-1C okanye i-0.5C ye-cross-flow ratio ibaluleke kakhulu, ukuya kuxinzelelo oluqhubekayo ukuba lube lude kakhulu, ngokuphucula uthelekiso lwegraphite ezintathu ezahlukeneyo, enye yazo inkulu ngokwentelekiso -20 degree ukutshaja rhoqo flow ratio Uphuculwe, ukusuka I-40% ukuya kwi-70%, ukunyuka kwezithuba zomaleko, kukho ukuhla kwe-particle size. Esi siqwenga se-electrolyte, kwi-degrees -20, -30 degrees, i-electrolyte, i-viscosity eyandisiweyo, kwaye iyancipha ukusebenza.

I-Electrolyte evela kwiinkalo ezintathu: i-solvent, ityuwa ye-lithium, i-additive. URao Dingmin uthe, “Ngovavanyo, sifumanise ukuba isinyibilikisi sichaphazela ubushushu obuphantsi bebhetri ye-lithium iron phosphate ion ukusuka kwi-70%, kukho ngaphezu kwe-90%, kukho amanqaku angaphezu kweshumi elinesibini; okwesibini, iityuwa ze-lithium ezahlukeneyo zine uphawu oluthile lwentlawulo yobushushu obuphantsi kunye nokukhutshwa.

Siyilungisile inkqubo ye-solvent kunye netyuwa ye-lithium, kwaye i-additive yokushisa ephantsi inokunyusa umthamo wokukhupha ukusuka kwi-85% ukuya kwi-90%, oko kukuthi, kuyo yonke inkqubo ye-electrolytic liquid, i-solvent, ityuwa ye-lithium, kunye nezongezo ze-lithium ion yethu yamandla. ibhetri. Kukho impembelelo ethile kwiimpawu zeqondo lokushisa eliphantsi, kubandakanywa nezinye iinkqubo eziphathekayo. "Ukunamathela, uRao Dingyi uthe kukho iintlobo ezintathu, amanqaku amabini, umgca.

Xa i-20 degree intlawulo kunye nokukhupha, amanqaku amabini mhlawumbi enze ngaphezu kwe-70 ukuya kwi-80 imijikelo, yonke i-pole yimeko yokusilela kwe-adhesive, kunye nokusetyenziswa kwezibophelelo zomgca azikho le ngxaki. Emva kwenkqubo yonke, ukusuka ekuphuculweni kwe-electrode elungileyo, i-electrode engalunganga, i-electrolyte ukuya kwi-binder, sinesiphumo esingcono kwi-lithium iron phosphate ion ibhetri monomer, enye ineempawu zokutshaja, -20, -30, - 40 idigri kwiqondo lobushushu le-0.5C ukutshaja umlinganiselo oqhubekayo wangoku ungafikelela kuma-62.

I-9%, - i-20 yokukhutshwa kweqondo lokushisa kunokukhutshwa kwi-94%, le yimpawu ezithile zokwandisa kunye nomjikelezo. Ngokubanzi, izithuthi zamandla amatsha zisebenza ngokuqhelekileyo kumntla, kungekhona nje i-monomer yebhetri enokusombulula iingxaki zokutshaja, kwaye kukho ukutsha kwe-BMS ngePakethi, kunye nokutsha kwemodeli yokuqinisekisa. Qinisekisa izithuthi zamandla amatsha kumantla obushushu obuphantsi bokusebenza okuqhelekileyo.

.

QHAGAMSHELANA NATHI
Sixelele nje iimfuno zakho, singenza okungaphezulu koko unokucinga.
Thumela ingxelo yakho
Chat with Us

Thumela ingxelo yakho

Khetha ulwimi olwahlukileyo
English
العربية
Deutsch
Español
français
italiano
日本語
한국어
Português
русский
简体中文
繁體中文
Afrikaans
አማርኛ
Azərbaycan
Беларуская
български
বাংলা
Bosanski
Català
Sugbuanon
Corsu
čeština
Cymraeg
dansk
Ελληνικά
Esperanto
Eesti
Euskara
فارسی
Suomi
Frysk
Gaeilgenah
Gàidhlig
Galego
ગુજરાતી
Hausa
Ōlelo Hawaiʻi
हिन्दी
Hmong
Hrvatski
Kreyòl ayisyen
Magyar
հայերեն
bahasa Indonesia
Igbo
Íslenska
עִברִית
Basa Jawa
ქართველი
Қазақ Тілі
ខ្មែរ
ಕನ್ನಡ
Kurdî (Kurmancî)
Кыргызча
Latin
Lëtzebuergesch
ລາວ
lietuvių
latviešu valoda‎
Malagasy
Maori
Македонски
മലയാളം
Монгол
मराठी
Bahasa Melayu
Maltese
ဗမာ
नेपाली
Nederlands
norsk
Chicheŵa
ਪੰਜਾਬੀ
Polski
پښتو
Română
سنڌي
සිංහල
Slovenčina
Slovenščina
Faasamoa
Shona
Af Soomaali
Shqip
Српски
Sesotho
Sundanese
svenska
Kiswahili
தமிழ்
తెలుగు
Точики
ภาษาไทย
Pilipino
Türkçe
Українська
اردو
O'zbek
Tiếng Việt
Xhosa
יידיש
èdè Yorùbá
Zulu
Ulwimi lwangoku:Xhosa