Dɛn Ne Nkwammoaa Adwuma?
Nkwammoaa mu Adwumayɛ
Wɔakyekyɛ nkwammoaa no adwumayɛ mu titiriw ayɛ no afã anan: anyinam ahoɔden adwumayɛ, ahobammɔ adwumayɛ, mfiri adwumayɛ, ne nneɛma a atwa yɛn ho ahyia adwumayɛ.
Electrical Adwumayɛ a Wɔde Yɛ Adwuma
(1) Rated Tumi a Ɛwɔ HɔNneɛma a wɔde gu mu wɔ 0.5C no, ɛnsɛ sɛ bere a wɔde fi nkwammoaa biako mu no nnu simma 120 ( Ɛboro anaasɛ ɛyɛ pɛ 90%), na bere a wɔde fi batere no mu no nnu simma 114 ( Ɛboro anaasɛ ɛyɛ pɛ 90%). Saa kyerɛwtohɔ yi yɛ nneɛma atitiriw no mu biako wɔ lithium battery rated capacity supplier delivery standard mu.
(2) 1C Nneɛma a Wɔde Tow Nneɛma MuDischarge wɔ 1C, ɛnsɛ sɛ bere a wɔde fi cell biako mu no nnu simma 57 (95%), na bere a battery pack no fi mu no nnu simma 45 (90%).
(3) Low-Ɔhyew a Wɔde Tow TumiDischarge wɔ 0.5C wɔ -20℃, bere a wɔde fi cell anaa battery pack biako mu no ɛnsɛ sɛ ennu simma 72 ( Kɛse sen anaasɛ ɛne 60% yɛ pɛ). Ɔhyew a ɛba fam adwumayɛ nya awɔw bere mu kar foforo a ahoɔden wom no so nkɛntɛnso tẽẽ na ɛyɛ ade titiriw a ɛhaw adwene wɔ ahoɔden batere a ɛyɛ hyew a ɛba fam ho nkyerɛkyerɛmu mu.
(4) High-Ɔhyew a Ɛma Nsu Gu TumiDischarge at 0.5C at 55℃, ɛnsɛ sɛ bere a wɔde fi nkwammoaa biako mu no nnu simma 114 (95%), na bere a battery pack no fi mu no nnu simma 108 (90%).
(5) Charge Retention ne Recovery Tumi a Wɔde SieSɛ wɔde sie dan mu hyew mu wɔ charge a edi mũ mu nnafua 28 wie a, ɛnsɛ sɛ bere a wɔde fi mu ma charge retention no nnu simma 96 ( Ɛboro anaasɛ ɛyɛ pɛ 80%), na bere a wɔde fi mu ma charge san gye no nnu simma 108 ( Ɛboro anaasɛ ɛyɛ pɛ 90%). Eyi yɛ nkyerɛkyerɛmu a ɛho hia a ɛkyerɛ ahoɔden a wɔkora so battery nnafua 28 charge retention rate.
(6) Nneɛma a Wɔkora So AdwumayɛCell baako anaa battery pack a wɔapaw ama storage test no nnu asram mmiɛnsa firi da a wɔyɛɛ no, na ɛsɛ sɛ wɔbɔ ho ka kɔsi 50%-60% wɔ ne tumi mu ansa na wɔde asie. Ɛsɛ sɛ wɔde sie nnafua 90 wɔ baabi a ɛhɔ hyew yɛ digrii 40 ± digrii 5 na ɛhɔ yɛ nwini yɛ 45%-75%. Bere a wɔde sie no akyi no, woyi battery pack no fi mu, wɔhyɛ no nyinaa wɔ 0.2C na wɔma egyina hɔ simma 60, na afei wɔtow gu wɔ current a ɛkɔ so daa a ɛyɛ 0.5C kosi cut-off voltage no so. Wobetumi ayɛ atifi hɔ sɔhwɛ no mpɛn 3, na ɛnsɛ sɛ bere a wɔde fi mu no nnu simma 72 (60%).
(7) Kyinhyia AsetraWɔde cell biako anaa battery pack no hyɛ 0.2C na wɔtow gu 0.5C ma sakre so. Wogyae sɔhwɛ no bere a tumi a wɔde gu mu no sua sen simma 72 (60%) mpɛn abien a ɛtoatoa so. Ɛnsɛ sɛ nkwammoaa biako no kyinhyia nkwa nna nnu kyinhyia 600, na ɛnsɛ sɛ batere no kyinhyia nkwa nna nnu kyinhyia 500. Wɔ kar nnwumakuw dodow no ara ne ahoɔden a wɔkora so nnwuma fam no, ahoɔden battery pack 500-cycle nkwa abɛyɛ ade titiriw a wɔde paw wɔn a wɔde nneɛma bɛma.
(8) Ɔhyew a Ɛkorɔn-Ɔhyew a Wɔkora So NkwaWɔbɛpaw nkwammoaa biako a ennu asram abiɛsa fi da a wɔyɛe no ama ɔhyew a ɛkorɔn-ɔhyew a wɔkora so nkwa nna sɔhwɛ no. Ansa na wɔde besie no, wɔde 50% ± 5% a ɛwɔ tumi no gu mu, na afei wɔde nkwammoaa no sie nnafua 7 wɔ baabi a ɛhɔ yɛ hyew a ɛyɛ digrii 55 ± digrii 2 . Nnafua 7 akyi no, woyi batere no na wɔma egyina hɔ simma 120–300 wɔ baabi a ɛhɔ yɛ hyew a ɛyɛ digrii 20 ± digrii 5 . Nea edi kan no, wɔma battery no kɔ cut-off voltage wɔ 0.5C, afei charged wɔ 0.2C wɔ 30 min akyi, ma egyina hɔ simma 30, na afei wɔtow gu wɔ constant current a ɛyɛ 0.5C kɔ cut-off voltage no so, na wɔfa saa tumi yi sɛ recovery capacity. Anamɔn a ɛwɔ atifi hɔ no yɛ nnawɔtwe 1-kyinhyia, na sɔhwɛ no ba awiei bere a bere a wɔde fi mu no nnu simma 72 (60%) wɔ dapɛn pɔtee bi mu. Ɛnsɛ sɛ bere a wɔde sie no nnu nnafua 56 (nnapɛn biara kyinhyia 8). Wɔakyerɛw sɔhwɛ yi sɛ ade a ɛyɛ ahyɛde wɔ dodow no ara mu wɔ lithium iron phosphate battery a ɛyɛ hyew a ɛkorɔn akorae nkwa nna ho akontaabu ahwehwɛde ahorow mu.
Ahobammɔ Adwumayɛ
(1) Charging a Wɔkɔ So YɛNkwammoaa biako no wɔ ahoɔden a ɛkɔ so daa a ɛyɛ 0.2C. Sɛ terminal voltage a ɛwɔ cell biako no du charging anohyeto voltage a, wɔdan no kɔ constant voltage charging na wɔhwɛ so nnafua 28. Sɛ wɔsɔ hwɛ wie a, ɛnsɛ sɛ batere no ntu, mframa nkɔ mu, ɛpaapae, nsɔ ogya, anaasɛ ɛpae (a ɛne full charge float charging yɛ pɛ).
(2) Ka a wɔbɔ boro soWɔde current fibea a ɛkɔ so daa a ɛyɛ 3C na ɛhyɛ cell biako no mu, na sɛ ahoɔden no du 10V a, wɔdan no kɔ ahoɔden a ɛkɔ so daa so kosi sɛ battery no bɛpae anaasɛ ogya bɛtɔ. Wɔgyae charge no bere a charge bere no yɛ 90min anaasɛ battery no ani hyew ayɛ den (ɔhyew nsonsonoe a ennu anaasɛ ɛne 2℃yɛ pɛ wɔ 45min mu). Ɛnsɛ sɛ batere no tɔ ogya anaasɛ ɛnpae; wɔde anyinam ahoɔden a wɔahyɛ da ayɛ no na ɛbɔ battery no mu ahoɔden a ɛkɔ so daa a ɛyɛ 0.5C, na sɛ ahoɔden no du 5nV (n yɛ series cells dodow) a, wɔdan no kɔ ahoɔden a ɛkɔ so daa so kosi sɛ battery no bɛpae anaasɛ ogya bɛtɔ. Wɔgyae charging no bere a charge bere no yɛ 90min anaasɛ battery pack no ani hyew gyina (ɔhyew nsonsonoe a ennu anaasɛ ɛne 2℃yɛ pɛ wɔ 45min mu). Ɛnsɛ sɛ batere no tɔ ogya anaasɛ ɛnpae.
(3) Nneɛma a Wɔhyɛ Wɔn Ma Wɔtow Gu (Reverse Charging) .Wɔdi kan yi cell baako no gu wɔ current a ɛkɔ so daa a ɛyɛ 0.2C kɔ cut-off voltage no so, na afei wɔde 1C current gu cell no akyi. Bere a wɔde charge no hwehwɛ sɛ ɛnnsua nsen 90min. Ɛnsɛ sɛ batere no tɔ ogya anaasɛ ɛnpae; cell baako a ɛwɔ battery pack no mu no gyae kɔ cut-off voltage no so, na nkaeɛ no yɛ cells a wɔahyɛ no ma koraa, na afei battery pack no gyae wɔ constant current a ɛyɛ 1C kɔsi sɛ battery pack no voltage bɛyɛ 0V, na wɔagyae discharge no. Ɛnsɛ sɛ batere no tɔ ogya anaasɛ ɛnpae.
(4) Sɔhwɛ a Wɔde Di Dwuma TiatiaaNkwammoaa baako no akyi yɛ tiawa-min 90, anaa kɔsi sɛ nkwammoaa no ani hyeɛ bɛgyina (ɔhyeɛ nsonsonoeɛ Ennu anaasɛ ɛne digrii 2 yɛ pɛ wɔ simma 45 mu), na afei wɔgyae kwan tiawa no. Ɛsɛ sɛ abɔnten so circuit resistance no nnu 50mΩ, na battery no ɛnsɛ sɛ ogya ntɔ anaasɛ ɛnpae; fa waya a ne ahoɔden nnu 0.1Ω fa battery pack no nnua a ɛyɛ papa ne nea enye no bata ho kosi sɛ battery pack no ahoɔden bɛyɛ nea ennu 0.2V anaasɛ battery pack no ani hyew bɛgyina (ɔhyew nsonsonoe a ennu anaasɛ ɛyɛ pɛ 2℃wɔ 45min mu), na afei wɔagyae nsu a ɛretu no. Ɛnsɛ sɛ batere no tɔ ogya anaasɛ ɛnpae.
Mfiridwuma mu Adwumayɛ
(1) Extrusion a wɔde hyɛ nipadua muFa nkwammoaa biako no to mprɛte abien a wɔde mia so mfinimfini na ma nhyɛso no nkɔ soro nkakrankakra kodu 13kN. Wɔ cylindrical cells ho no, ɛsɛ sɛ extrusion akwankyerɛ no gyina cylinder axis no so; wɔ prismatic nkwammoaa ho no, ɛsɛ sɛ wɔde nkwammoaa no anim a ɛtrɛw na ɛyɛ teateaa no fi mu. Wobetumi de nkwammoaa biara ayɛ extrusion biako pɛ, na ɛsɛ sɛ nea efi sɔhwɛ mu ba no ne gyinapɛn ahorow a ɛfa ho no mu nhyehyɛe ahorow hyia. Fa dadeɛ poma a ne kɛseɛ yɛ 15cm gu battery pack no so na ama battery pack no anim a ɛtrɛ na ɛyɛ teateaa no, extrude no akɔ 85% wɔ battery no kɛseɛ mfitiaseɛ no mu, na hwɛ so 5min. Battery pack biara betumi ayɛ extrusion biako pɛ.
(2) Nneɛma a wɔde hyɛn muFa nkwammoaa biako no to dade a wɔde hyɛ mu, na fa dade nnadewa a ne kɛse yɛ φ3-8mm hyɛn nkwammoaa no mu fi ɔkwan a ɛteɛteɛ nkwammoaa no mprɛte no so (dade nnadewa no kɔ so tra nkwammoaa no mu), toa so simma 90, anaasɛ gyae sɔhwɛ no bere a nkwammoaa no ani hyew no gyina (ɔhyew nsonsonoe a ennu anaasɛ ɛyɛ pɛ digrii 2 wɔ simma 45 mu).
(3) Nneɛma a emu yɛ duru a Ɛma NkɛntɛnsoFa nkwammoaa biako no to wimhyɛn a ɛyɛ den so, na fa dade poma a ne kɛse yɛ 15.8mm tratraa wɔ nkwammoaa no mfinimfini, na dade poma no tenten a ɛne wimhyɛn no hyia. Wɔma ade a emu yɛ duru a ne mu duru yɛ 9.1kg kwan ma ɔhwe ase fi ne sorokɔ a ɛyɛ 610mm so kɔ dade poma a ɛwɔ nkwammoaa no mfinimfini no so; sɛ nkwammoaa biako no yɛ kurukuruwa a, ɛsɛ sɛ nkɛntɛnso no kwankyerɛ no gyina hɔ ma kurukuruwa no tenten kwan no; sɛ nkwammoaa biako no yɛ prismatic a, ɛsɛ sɛ ɛka nkwammoaa no anim a ɛtrɛw na ɛyɛ teateaa no. Nkwammoaa biara betumi anya nkɛntɛnso biako pɛ.
(4) Mfiridwuma mu ShockƐsɛ sɛ wɔde batere anaa batere no si hɔ denneennen (ɔkwan no betumi aboa batere anaa batere no afã horow a wɔahyɛ no den nyinaa) na wɔde abɔ mfiri a wɔde sɔ hwɛ no ho. Ɛsɛ sɛ wɔde batere anaa batere no bɔ akuturuku biako a ɛne no sɛ wɔ akwan abiɛsa a ɛne ne ho di nsɛ so. Anyɛ yiye koraa no, ɛsɛ sɛ ɔkwan biako gyina batere anaa batere no anim a ɛtrɛw no so. Wɔbɛyɛ shock biara sɛdeɛ ɛdidi soɔ yi: ɛsɛ sɛ ahoɔhare a ɛsua koraa no yɛ 725m/s2 wɔ 3ms a ɛdi kan no mu, na ɛsɛ sɛ ahoɔhare a ɛsen biara no yɛ 1225-1715m/s2 ntam.
(5) Wosow a ɛwosowWɔde batere anaa batere no ahyɛ wosow pon no so tẽẽ anaasɛ wɔde si wosow pon no so denam ade bi a wɔde si hɔ so de sɔ wosow hwɛ. Sɔhwɛ tebea no ne: frequency 10-55Hz, acceleration 29.4m/s2, XYZ akwan abiɛsa, sweep cycles 10 wɔ ɔkwan biara so, na sweep rate yɛ 1oct/min.
(6)Free Drop a Wɔde TowWɔma kwan ma cell biako anaa battery pack no free drop fi sorokɔ (beae a ɛba fam koraa sorokɔ) a ɛyɛ 600mm so kɔ nnua a ɛyɛ den a ne kɛse yɛ 20mm a wɔde ato semɛnte fam so, pɛnkoro fi XYZ no mu biara akwan abiɛsa so.
Nneɛma a Atwa Yɛn Ho Ahyia Adwumayɛ
(1) Ɔhyew a Ɛkorɔn a WɔtowFa nkwammoaa biako no to adaka a ɛyɛ hyew a ɛkorɔn-a ɛpae-adanse mu, na ma ɔhyew no kɔ soro kodu digrii 130 wɔ digrii 5 /simma mu, na fa sie saa ɔhyew yi mu simma 10.
(2) Ɔhyew a Ɛkorɔn a Wɔkora SoFa cell biako anaa battery pack no gu fononoo a ɛwɔ (75 ± 2)℃mu 48h. Ɛnsɛ sɛ batere no pue, mframa nkɔ mu, ɛpaapae, ɛnsɛ sɛ ogya nhyew, anaasɛ ɛpae.
(3) Nhyɛso a Ɛba FamDu UL1642 (Underwriters Laboratories Inc.) gyinapɛn no ho dwuma. Wɔde battery no sie 6h wɔ tebea a nhyɛso a ɛyɛ 11.6kPa koraa ne ɔhyew a ɛyɛ digrii 20 ± digrii 3 ase . Ɛnsɛ sɛ ogya ntɔ batere no anaasɛ ɛpae, na ɛnsɛ sɛ tokuru anaasɛ nsuo biara nkɔ mu.
