Say panagdesinyo tan panaggawa na lithium-ion ya baterya

Say basiyan na desinyo na lithium-ion ya baterya

Saray Manunan Prinsipyo ed Desinyo

Say desinyo na baterya et nepeg ya base ed espisipikon pankaukolan na de-koriente ya kagawaan tan saray katangian nabateryamismo. Unona, saray teknikal ya parametro na kada kabiangan, kaiba lay electrodes, electrolyte, separator, tan casing, et nepeg ya malinew ya nidetalye. Niarum ni, saray parametro na proseso na panaggawa et kaukolan ya i-adjust a maong pian naseguro ya say pinal ya battery pack et makaabot ed saray akauna lan detalye tan performance indicators (singa say boltahe, kapasidad, tan karakel). Say makatunongan tan epektibon desinyo et importante pian napaaligwas so performance na baterya no aktual ya usaren; kanian, say pananap na sankaabigan ya solusyon legan na proseso na panagdesinyo et importante.

Saray Kakaukolanen ed Desinyo

Diad panagdesinyo na baterya, importante ya sigpot ya natalosan iray espisipikon kakaukolanen na target ya kagawaan parad saray parametro na performance na baterya tan say operating environment to. Diad inkalapagan, nepeg ya ikonsidera iray onggendan a manunan bengatla:

Saray lithium-ion ya baterya et mabetbet ya uusaren lapud maong so performance da. Balet, diad pigaran aplikasyon, kaukolan dan nasumpal so nanduruman kaaruman iran kakaukolanen, a singa say pakatebek ed saray shock tan yegyeg, pakaadapta ed arawrawin temperatura, tan pan-operate ed abeban-pressure ya kaliberliber. No mandesinyo irayan baterya, nilikud ed pangikonsidera ed sarayan manunan pisikal a katangian, kaukolan ya komprehensibon ikonsidera iray bengatla a singa say pampili na saray hilaw a materyales, saray manunan bengatla ya mandetermina ed saray katangian na baterya, inkalapagan a performance, proseso na panaggawa, panagsukimat ed gastos-benepisyo, tan temperatura na operasyon.

Saray manunan pakapatnagan parad panangusisa ed pakayari na saray baterya na kuryente

1) Kapasidad

Say kapasidad na baterya et manutukoy ed karakel na kuryente ya nayarin iter na baterya diad silong na espisipikon kondisyon na discharge. Sayan konsepto et kaslakan ya ibalikas bilang produkto na kuryente tan panaon, tan kaslakan ya nasukat ed ampere-oras (Ah). Sayan parameter et direktan mangaapekta ed sankatageyan ya operating current na baterya tan say karukey na tuloytuloy ya operasyon to.

2) Saray Ugali na Discharge tan Internal Resistance

Say katangian na discharge na baterya et mangipapatnag na inkapekder na output voltage to, say voltage plateau, tan say atagey ya -current discharge performance to ed silong na espisipikon kondisyon. Saraya so importantin pakapatnagan pian nasukat so kapasidad na karga na baterya. Niarum ni, walay duaran klase na resistensya ed loob na baterya: ohmic internal resistance tan polarization internal resistance. Sarayan duaran klase na internal resistance et walaan na baleg ya epekto ed inkalapagan ya performance na discharge legan na atagey ya -current discharge.

3) Operating Temperatura Range

Pian naseguro so malet ya operasyon na saray kagawaan ed kuryente diad nanduruman kondisyon na kaliberliber, saray baterya et nepeg ya mansiansian maong so performance da ed loob na espisipikon temperatura.

4) Say Panggawa na Pansimpen
Kayari na sakey a panaon na panag-imbantak, nayarin manguman so performance na baterya lapud nanduruman bengatla, ya pansengegan na self-discharge, electrolyte leakage, short circuits, tan arum ni, kanian naapektoan so performance to.

5) Panggawa na Siklo
Say cycle performance et manutukoy ed bilang na charge-discharge cycles ya sarag na segundaryon baterya diad silong na espisipikon charge-discharge rules anggad say performance to et onleksab ed sakey a nidetermina lan lebel. Sakey iya ed saray importantin pakapatnagan pian naseguro so andukey a panaon na inkamatoor na sakey a baterya.

6) Saray Katangian na Kaligenan
Say kaligenan na baterya et napatnagan ed kaligenan to ed agnormal iran kondisyon na panguusar. Sarayan abnormal ya kondisyon na pangusar et kaiba so overcharging, short circuits, nail penetration tests, crush tests, hot box exposure, heavy object impacts, tan vibrations. Say pakayari na baterya ya mansungdo ed sarayan graben kondisyon et sakey ed saray manunan sengegan pian naamtaan no kasin matukoy itan ed angkakabaleg iran aplikasyon.

Saray kagawaan parad panagparaan tan pangibiig ed positibo tan negatibo iran materyales na electrode

preparasyon

preparasyon

Saray positibo tan negatibon materyales na electrode so manunan kabiangan na lithium-ion ya baterya, a singa saray positibon electrode a singa say LFePO4 odino LiCoO2, tan saray negatibon electrode a singa say graphite odino silicon/carbon. Saray nanduruman materyales et mankaukolan na nanduruman paraan na panagparaan. Sayan seksion et manguusar na ternary positive electrode materials bilang alimbawa pian niparungtal iray kagawaan ya nakaukolan ed proseso na panagparaan.

Pangipatnag na Ugali

Saray manunan materyales na lithium-ion ya baterya, singa say positibo tan negatibon materyales ya electrode, et amin ya electrochemical functional materials ya makabkabaliksan ya mangiimpluensya ed electrochemical ya performance na lithium-ion ya baterya. Dakel so teknikal ya indikasyon ya ikonsidera legan na panaggawa tan panagpaalagey na materyales, ontan met ed panaggawa tan pangiyaplika na baterya, balet ta manunan kabiangan iratan ed taloran kategorya: say unonan kategorya et say kristal ya istruktura tan mikroistruktura na materyal; say komaduan kategorya et saray physicochemical indicators na materyal, kaiba lay inkaapag-apag na kabaleg na partikulo, espisipikon tapew na tapew, karakel na gripo, tan komposisyon na elemento (kaiba lay impurities); tan say komatlon kategorya et say electrochemical performance characteristics na materyal, a singa say kapasidad, initial efficiency, tan electrochemical impedance. Say pakaamta tan pakabidbiran na nanduruman pakapatnagan na lithium-ion ya manunan materyales na baterya et baleg so kabaliksan to parad panagsukimat tan panagpaalagey na materyales, panangontrol ed produksyon, tan panangseguro na kalidad.

Button lithium-ion ya kagawaan ed panaggawa na baterya

Say coin cell, ya tatawagen met ya button cell odino half-cell, et kaslakan ya manguusar na lithium metal bilang negatibon electrode tan say positibon electrode material bilang positibon electrode; odino lithium metal bilang positibon electrode tan say negatibon electrode material bilang negatibon electrode. Say melag a kabaleg to, abeban nauusar a materyales ed panaggawa na electrode, tan atagey ya inka-flexible to so manggagawa ed satan ya importantin kagawaan parad panagpaalagey tan panag-testing na saray aktibon materyales parad lithium-ion ya baterya.

Diad yugtan na panaggawa na electrode, saray materyales tan reagents ya nakaukolan et kaiba iray positibo tan negatibon materyales na electrode, conductive agents, binders, tan current collectors. Unona, say positibo tan negatibon aktibon materyales na electrode, saray conductive agent, tan saray binder et parepareho ya ilalaok ed sakey ya espisipikon ratio ya uusaren so manual ya panaggiling odino mekanikal ya homogenization. Insan, say resulta na slurry et i-coat ed mipetekan ya current collector. Diad laboratory coating, say paraan na panag-coating et nadetermina base ed karakel na slurry. Parad angkakabaleg iran slurry, usaren so melag a coating machine (Figure (a)); parad saray angkekelag ya slurries, sakey a film-forming device so uusaren parad manual a panag-coating (Figure (b)). Say electrode et pamaraan ed drying oven tan i-compact panamegley na roller pressing. Say panag-slice et proseso na suston panagputot ed electrode ed pabilog iran piraso. Kaslakan, say roller-pressed electrode et ipepeket ed baetan na weighing paper tan iiyan ed sakey a punching machine pian maples ya nasuntok iray angkekelag ya piraso na electrode. Say diametro na saray melag a piraso na electrode et nayarin i-adjust base ed kabaleg na punching die na punching machine.