Lithium battery shim lam hpe chyam yu ai ngu ai gaw hpa rai ta?- Polinovel

Lithium battery shim lam hpe chyam yu ai ngu ai gaw hpa rai ta?

1)Tsawra ai lam a yaw shada lam: Cell langai a battery langai a wan n-gun n-gun n-rawng ai lam hpe jep yu na matu, battery htum mat ai shaloi byin wa chye ai shimlam hkrit tsang lam ni hpe shingdaw yu nna, dai hku nna sample gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi yu u.

2)Chyam dinglik ai arung arai ni: Single cell .battery charge{{0} n-gun n-gun n-rawng ai arung arai ni, n galai shai ai nbung katsi ai chyam dinglik gawk, multimeter, etc.

3)Tsawra ai ladat hte ladat ni:

① Pre{0}} gaw nta kata na nbung katsi ai shara kaw na cell battery langai hpe tsi lajang nna, dai hpe tup hkrak charge galaw u.

1)Tsawra ai lam a yaw shada lam: Cell langai a battery langai a wan n-gun n-gun n-rawng ai lam hpe jep yu na matu, battery hpe grai charge galaw ai shaloi byin wa chye ai shimlam hkrit tsang lam ni hpe shingdaw yu nna, dai hku nna sample gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi yu u.

2)Tsawra ai arung arai ni: cell battery charge- n-gun n-gun langai sha nga ai, n-gun n-gun hpe chyam dinglik ai rung, multimeter, etc.

3)Tsawra ai ladat hte ladat ni:

① Pre{0}} gaw nta kata na nbung katsi ai shara kaw na cell battery langai hpe tsi lajang nna, dai hpe tup hkrak charge galaw u.

1)Tsawra ai lam a yaw shada lam: Cell langai a battery langai a wan n-gun n-gun n-gun (electrical circle) a wan n-gun hpe jep yu na matu, shinggan na circuit langai mi battery hta byin wa chye ai shimlam hkrit tsang hpa ni hpe shingdaw yu nna, dai hku nna sample gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi yu u.

2)Tsawra ai arung arai ni: cell battery charge- n-gun n-gun langai sha nga ai, n-gun n-gun hpe chyam dinglik ai rung, multimeter, etc.

3)Tsawra ai ladat hte ladat ni:

① Pre{0}} gaw nta kata na nbung katsi ai shara kaw na cell battery langai hpe tsi lajang nna, dai hpe tup hkrak charge galaw u.

1)Tsawra ai lam a yaw shada lam: Cell langai a battery langai a jak hte n kaja ai lam hpe jep yu na matu, battery hpe htum mat ai shaloi byin wa chye ai shimlam hkrit tsang lam ni hpe shingdaw yu nna, dai hku nna sample gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi yu u.

3)Tsawra ai ladat hte ladat ni:

① Pre{0}} gaw nta kata na nbung katsi ai shara kaw na cell battery langai hpe tsi lajang nna, dai hpe tup hkrak charge galaw u.

Langai. Crush plate form: Semi-cylinder 75 mm radius hte, semi-cylinder a galu kaba ai lam (L) gaw, htum mat ai cell battery a kaba ai hta grau kaba ai.

b. Crushing speed: 2 mm/s hta grau n kaba ai.

c. Crushing degree: Voltage 0 V du ai shaloi, 15% de du ai shaloi, n-gun yawm ai hpe jahkring kau u, shing nrai, n-gun n-gun gaw 100 kN (sh) 1000 lang chyam dinglik ai arai a n-gun hta na htam 1000 du ai.

③ 10 min tup jum da u.

1)Tsawra ai lam a yaw shada lam: Battery hpe hkang zing ai ladat hku nna yu reng mai ai kaji dik htum ai battery unit a thermal runaway galaw ai lam hpe jep joi na matu, wan jak mawdaw ni hte mawdaw ni hpe hkrit tsang hpa byin shangun ai core risk source ntsa hta shimlam hpe jep joi ai lam galaw ai, dai hku nna sample gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi ai lam galaw ai.

3)Tsawra ai ladat hte ladat ni:

. Hka lum jak a matu power lata ra ai lam ni hpe Table 6-10 hta madun da ai. Test object hte katsi ai jak hpe shinggyin la u. Hka lum ai jak gaw cell langai sha hte hkrak matut mahkai ra ai, nbung katsi ai jak a galu kaba ai lam gaw chyam dinglik ai arung arai a katsi ai shara hta grau kaba ai n mai byin ai. Install temperature monitor ni hpe, nbung katsi ai shara kaw nna tsan ai maga de tawn da ai, n-gun n rawng ai shara kaw tawn da ai temperature sensor hpe, nbung katsi ai jak a shingdu maga de tawn da ai. Katsi ai aten na jahpan ni a sample aten gaw 1 s hta n law ra ai, 2℃a hkrak ai lam ra ai, nbung katsi ai sensor tip a shara gaw 1 mm hta n law ra ai.

Table 6-10 Hka lum ai jak lata ra ai lam ni

E/Wh	Hka lum ai jak/W a n-gun grau law ai
E<100	30-300
100 E hte maren n law ai (sh) maren sha re.<400	300-1000
400 E hte maren n law ai (sh) maren sha re.<800	300-2000
E 800 hta grau kaba ai (sh) maren sha re.	>600

② Pre{0}} gaw nta kata na nbung katsi ai shara hta cell langai sha battery hpe tsi lajang nna 100% SOC de charge galaw u. Dai hpang, 12 min tup 1/1 current hte test object hpe matut nna charge galaw u. Kalang ta nbung katsi ai jak hpe hpaw nna, chyam dinglik ai arai hpe shi a n-gun kaba dik htum hta matut manoi katsi shangun u. Thermal hprawng ai lam byin wa ai shaloi (sh) yu reng ai shara kaw na nbung katsi ai lam 300℃du ai shaloi, katsi ai hpe jahkring kau nhtawm, katsi ai jak hpe pat kau u.

③ thermal hprawng ai lam byin wa ai kun ngu ai hpe dawdan na matu masa lam ni

Langai. Test object gaw voltage drop hpe hkam sha nna, drop gaw shawng nnan na voltage a 25% jan ai.

b. Ndai yu reng ai shara kaw na nbung katsi ai lam gaw battery galaw ai wa tsun da ai bungli galaw ai nbung katsi dik htum de du wa ai.

c. /s hta grau nna (sh) maren sha rai nna, 3 s hta jan ai aten hta nga ai. Thermal hprawng ai lam gaw a hte c hte c byin ai shaloi byin wa ai ngu dawdan da ai.

1)Tsawra ai lam a yaw shada lam: Mawdaw gap hkat ai aten hta battery pack/system ntsa hkra machyi ai lam hpe shingdaw na matu, dai hku nna sample a structural n-gun gaw design ra ai lam ni hpe hkan sa lu na kun ngu ai hpe jep joi yu na.

3)Tsawra ai ladat hte ladat ni: Mawdaw kata na chyam dinglik ai arai a jung shara hte GB/T 2423.43{5}2008 a ra kadawn ai lam ni hpe yu nna, chyam dinglik ai arung arai hpe n-gun rawng ai sled langai mi hta n-gun n rawng ai sha jung da ra ai. Test object a jai lang ai makau grup yin hte maren, mawdaw a lawan ai lam/hka lim ai n-gun hte rau, ndai pulse gaw Table 6{6}}11 hte sumla 6-1 hta tsun da ai lamu ga jarit masa ni hpe hkan sa na re (mawdaw hkrun lam hkawm ai lam gaw x-axis rai nna, kaga horizontal lam gaw hkrun lam hkawm sa ai lam hte dingyang hkawm sa ai lam gaw y-axis rai nga ai, mawdaw a n-gun hpe n-gun n rawng ai lam gaw y-axis rai nga ai). Test object hta n-gun law law hpe jung ai (x/y/z) law law nga ai shaloi, chyam dinglik ai lam a matu grau lawan ai hku nna jung ai lam hpe lata la ra ai. Test ngut ai hpang, chyam dinglik ai ambient temperature hta hkying hkum 2 tup yu u.

Figure 6-1 Schematic of Simulated Crash Test Acceleration Pulse

Table 6-11 Pulse parameters ni hpe shingdaw nna hkrat sum ai chyam dinglik ai lam

Chyam ai	Pulse galu /ms ni	m 3.5 t hte maren n law ai (sh) maren sha re.		3.5 t < m 7.5 t hte maren (sh) maren sha n law ai.		m > 7.5 t
		x-} hpe lawan ladan galaw/g .	y{0}}}lu ai lawan ladan/g .	x-} hpe lawan ladan galaw/g .	y{0}}}lu ai lawan ladan/g .	x-} hpe lawan ladan galaw/g .	y{0}}}lu ai lawan ladan/g .
A	20	20	8	10	5	6.6	5
B	50	20	8	10	5	6.6	5
C	65	20	8	10	5	6.6	5
D	100	0	0	0	0	0	0
E	0	10	4.5	5	2.5	4	2.5
F	50	28	15	17	10	12	10
G	80	28	15	17	10	12	10
H	120	0	0	0	0	0	0

4)Data galaw ai lam hte jep joi ai lam ni hpe masat masa galaw ai lam:

① Battery pack/system gaw chyam dinglik ai aten hte yu maram ai aten laman hta hka lim ai, n-gun yawm ai, wan n-gun yawm ai, shing nrai, bawm kapaw ai lam ni hpe madun u;

② Chyam dinglik ai lam garai n galaw shi ai aten hte galaw ngut ai hpang na insulation hpe ninghkap ai manu ni hpe bai ka da u.

1)Tsawra ai lam a yaw shada lam: Battery pack/system hpe htum kau ai shaloi byin wa chye ai shimlam hkrit tsang lam ni hpe shingdaw yu na matu, dai hku nna sample a hkrang n-gun gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi yu na.

3)Tsawra ai ladat hte ladat ni: Hka lim ai lam ni gaw x-} direction (hpyen hkawm ai lam gaw x{3}}axis rai nna, kaga lam hku hkawm sa ai lam hte dingyang hkawm sa ai lam gaw y{4}}axis rai nga ai). 2 mm/s hta jan nna n-gun yawm ai lawan ai lam n mai byin ai. 100 kN du ai shaloi, 10 min tup crushing galaw nna hkam la u (sh) n-gun n rawng ai lam gaw, n-gun n rawng ai maga de 30% du hkra du wa ai. Test ngut ai hpang, chyam dinglik ai ambient temperature hta 1 h tup yu u. Crush plate hkrang a schematic diagram hpe sumla 6-2 hta madun da ai. Lahta na amyu langai hpe lata mai ai:

Figure 6-2 Schematic Diagram of Extruded Plate Forms

1)Tsawra ai lam a yaw shada lam: Hka shang wa ai masa hta battery pack/system a byin mai ai shimlam hpe chyam dinglik na matu hte dai gaw hkrang shapraw ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi na matu.

2)Chyam dinglik ai arung arai ni: Battery system charge-discharge jak ni, n-gun n-gun n-gun n-gun n-gun n-gun hpe chyam yu ai nta, panglai hka hta hka n-gun chyam dinglik ai nta, insulation hpe ninghkap ai chyam dinglik ai wa, etc.

3)Chyam dinglik ai ladat hte ladat ni: Chyam dinglik ai arung arai gaw mawdaw matut mahkai ladat hte maren wiring harness, connector hte kaga daw ni hte matut mahkai ra ai. Lahta na ladat lahkawng kaw na langai hpe chyam yu u:

① Chyam dinglik ai arai hpe 3.5% (mass fraction) sodium chloride ntsin hta 2 h tup tawn da nna, mawdaw hpe hpawng de ai lam hta 2 h tup tawn da nna, hka sung ai shara gaw chyam dinglik ai arung arai hpe tsep kawp hka kata de lup kau lu na matu law law nga ai;

② GB/T 4208-2017 a 14.2.7 hta tsun da ai ladat hte ladat hte maren chyam dinglik ai lam hpe galaw u. Test object hpe galaw shapraw ai wa tsun da ai installation state hta hka hta hkum tsup hkra lup bang ra ai. 850 mm npu na tsaw ai hpe chyam dinglik ai arung arai ni a matu, npu na shara gaw hka ntsa kaw na 1000 mm npu kaw rai ra ai; 850 mm hte maren tsaw ai (sh) dai hta jan ai chyam dinglik ai arung arai ni a matu, tsaw dik ai shara gaw hka ntsa kaw na 150 mm npu kaw rai ra ai. Chyam dinglik ai aten gaw 30 min re. Hka hte chyam dinglik ai arung arai lapran na nbung laru shai hkat ai lam gaw 5℃hta n mai byin ai. Hka kaw na battery pack hpe shaw kau ngut ai hpang, n shamu n shamawt ai sha tawn da nna, chyam dinglik ai ambient temperature hta 2 h tup yu u.

. Ladat ② hte maren galaw ai chyam dinglik lam ni a matu, chyam dinglik ngut ai hpang na battery pack/system a insulation hpe ninghkap lu ai manu hpe ka matsing da na, IPX7 ra ai lam hte maren rai kun, hka lim ai, shell rupture (sh) bawm kapaw ai lam nga ai kun ngu ai hpe ka matsing da na.

1)Tsawra ai lam a yaw shada lam: Shinggan wan n-gun hte hkrum katut ai shaloi, battery pack/system a byin mai ai shimlam hpe chyam dinglik na matu hte, dai gaw hkrang shapraw ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi na matu.

2)Chyam dinglik ai arung arai ni: Battery system charge-discharge arung arai ni, n-gun n-gun n-gun hpe chyam dinglik ai nta, shinggan wan n-gun hpe chyam dinglik ai bench, insulation hpe ninghkap lu ai chyam dinglik ai wa, anemometer, anemometer, etc.

3)Tsawra ai ladat hte ladat ni: grup yin nbung katsi ai gaw 0℃jan rai nna nbung a lawan ai gaw 2.5 km/h n mai byin ai. Chyam dinglik ai aten hta, gasoline tray a galu kaba ai lam gaw, chyam dinglik ai arung arai a n-gup magap hpe 20 cm daram hta jan nna, 50 cm hta jan nna n jan ra ai, tray tsaw ai gaw, wan sau ntsa kaw nna 8 cm jan n mai ai. Chyam dinglik ai arung arai hpe ginjaw kaw tawn da ra ai. Gasoline ntsin madang hte chyam dinglik ai arung arai a lawu daw lapran na tsan gang ai lam hpe mawdaw hpe jahkrat kau ai shaloi, 50 cm (sh) chyam dinglik ai arai a lawu na npu na ga npu hpe tawn da ra ai. Hka hpe tray a lawu daw de bang da ra ai. Shinggan wan n-gun a schematic diagram hpe sumla 6-3 hta madun da ai.

Figure 6-3 External Fire Test Schematic

Shinggan na wan hkru ai lam hpe chyam dinglik ai lam hpe lawu na daw 4 hku garan nna galaw ai:

① Tau hkrau sadi maja u: Test object kaw na n yawm htum 3 m tsan ai shara kaw gasoline hpe n myit yu u. s 60 s ngut ai hpang, chyam dinglik ai arai a npu e wan sau tray hpe tawn da u. Gasoline tray hpe grai kaba ai rai yang, chyam dinglik ai arung arai hte shi a madi shadaw ai lam hpe de a malai htawt kau mai ai.

② Direct wan n-gun hpe hkam sha ai lam: Chyam dinglik ai arai gaw 70 s a matu wan n-ga hte hkrak sha hkrum katut ai.

③ Indirect wan hkru ai lam: Gasoline tray hpe wan- hpe ninghkap lu ai shingnip hte ka-up u. Ndai masa hta chyam dinglik ai lam hpe 60 s tup chyam yu ai. Shing nrai, lahkawng maga myit hkrum ai lam hpe yu yang, 60 s a matu wan hkru ai lam hpe hkrak sha matut nna hpaw shadan dan na. Wan- hpe ninghkap lu ai shingnip hpe standard refractory lung seng ni kaw na shinggyin la nna, shi a shadawn shadang hte hpaji masa ni hpe sumla 6-4 hta madun da ai.

$Figure 6-4 Dimensions and Technical Data of Refractory Partition Plate$

④ Wan n-gun kaw na shaw kau na: Gasoline tray (sh) test object hpe tsan tsan de htawt nna, test ambient temperature hta 2 h tup yu u (sh) test object a shinggan na npu n-gun gaw 45℃npu de hkrat wa ai aten du hkra yu u.

4) Data hpe galaw ai hte jep joi ai lam ni hpe masat masa galaw ai:

① Battery pack/system gaw chyam dinglik ai aten hte yu maram ai aten hta wan, bawm kapaw ai (sh) kaga mabyin masa ni hpe madun u.

② Wan n-ga nga yang, wan n-gun hpe shaw kau ngut ai hpang 2 min laman hta si mat ai kun ngu ai hpe ka matsing da u.

1)Tsawra ai lam a yaw shada lam: Battery cell langai sha thermal hprawng mat ai shaloi, battery pack/system a shimlam hpe chyam yu na matu hte, dai gaw design ra ai lam ni hpe hkan sa ai kun ngu ai hpe jep joi yu na matu.

3)Tsawra ai masa lam ni: Ndai chyam dinglik ai lam hpe 0℃jan ai grup yin hta galaw ra ai, 10 %–90 % jan hka lim ai, nbung n-gun86}–106 kPa a nbung laru n-gun nga ai. Test garai n hpang shi yang, test object a SOC hpe gram lajang u. Shinggan kaw charge galaw na matu galaw da ai battery pack/systems ni a matu, SOC hpe enterprise hku nna masat da ai SOC bungli galaw ai shara a 95 % hta n yawm ai hku galai shai ra ai. Mawdaw a n-gun atsam hte sha charge galaw na matu galaw da ai battery pack/systems ni a matu, SOC hpe enterprise kaw nna masat da ai SOC operating range a 90 % hta n yawm ai sha galai shai ra ai. Test garai n hpang shi yang, chyam dinglik ai jak yawng gaw, n bung ai hku galaw ra ai. Test sample hpe mai byin ai daram loi mi sha galai shai ra ai, enterprise gaw galai shai ai lam ni a jahpan hpe bang ra ai. Ndai chyam dinglik ai lam hpe nta kata (sh) nbung laru a lawan ai 2.5 km/h hta n jan ai grup yin hta galaw ra ai.

. Battery pack/system a lapran kaw nga ai (sh) kaga single cell ni hte shinggrup da ai cell langai hpe lata u.

① Nail shang wa ai ladat hpe nbung laru hprawng ai lam hpe shabyin ya na matu: Hka shang wa ai n-gun hpe 3–8 mm galu ai n-gang hte galaw ra ai; n-gang n-gang gaw 20℃–60℃angle hte conical rai ra ai ; shang wa ai lawan ai lam gaw 0.1–10 mm/s rai ra ai; shang wa ai shara hte maga de na hpe lata la nna, battery cell langai sha hta nbung laru hprawng ai lam hpe shabyin ya na matu lata ra ai (ga shadawn, electrode plate maga de dingyang).

② Nbung n-gun hpe shabyin ya lu ai nbung laru ladat: flat (sh) rod-shaped katsi ai jak hpe lang nna, shi a ntsa e ceramic, metal (sh) insulating layer hte shinggrup da ai. Block-shaped katsi ai jak langai a matu, cell langai sha lang ai battery hte maren sha, cell langai hpe galai kau nna, trigger object a ntsa hte hkrak matut mahkai nga ai; n-gun n rawng ai-film hpe katsi shangun ai jak langai a matu, dai gaw trigger object a ntsa e aten shagu n-gun rawng nga na re; n-gun ja ai jak a katsi ai shara gaw, cell langai sha a npu na lamu ga hta grau kaba ai n mai byin ai; nbung katsi ai jak a ntsa lam gaw cell langai sha a ntsa hte hkrak matut mahkai ra ai, nbung katsi ai jak a shara gaw masat da ai nbung katsi ai hpe chye ai sensor a shara hte maren rai ra ai; installation galaw ngut ai hpang, 24 h laman hta nbung katsi ai jak hpe galaw nna, trigger object hpe shi a n-gun kaba dik htum hta katsi shangun ra ai; n-gun rawng ai jak a power lata ai lam hpe Table 6-12 hta madun da ai; thermal runaway byin ai shaloi triggering (sh) dai hte maren nbung katsi ai hpe chye ai 300℃du ai.

Table 6-12 Hka lum ai jak a n-gun hpe lata ai

E/Wh	Hka lum ai jak/W a n-gun grau law ai
E<100	30-300
100 E hte maren n law ai (sh) maren sha re.<400	300-1000
400 E hte maren n law ai (sh) maren sha re.<800	300-2000
E 800 hta grau kaba ai (sh) maren sha re.	>600

③ Hpaji jaw ai yu reng ai shara masat masa: Voltage (sh) nbung laru hpe shawng na circuit (sh) jat nna chyam dinglik ai circuit hpe lang nna yu reng ra ai. 1 s hta n-pu na nbung katsi ai lam hpe sample galaw ai aten gaw ±2℃a hkrak ai lam hte rai ra ai. Nail shang wa ai aten hta, nbung katsi ai hpe n-gun shayawm ai lam hpe n-gun n-gun shayawm ai lam hpe mai byin ai daram ni htep hkra tawn da ra ai-}} grup yin; n-gup a n-gun hpe mung lang mai ai (nail shang wa ai aten hta nbung katsi ai hpe chye ai shara ni a schematic diagram hpe sumla 6-5 hta madun da ai). Hka lum ai lam hpe shabyin ai aten hta, nbung katsi ai lam hpe n-gun dat ai lam hpe n-gun dat dat ai lam kaw na tsan ai maga de tawn da ra ai, ngu ai gaw, katsi ai jak a shingdu maga de tawn da ra ai (Sumla 6-6 hpe yu u).

Figure 6-5 Schematic of Temperature Sensor Placement During Acupuncture Triggering

① Test object gaw shawng nnan na voltage hta na 25 % jan ai voltage hkrat sum ai lam hpe hkam sha ai.

② Hkamja lam hpe yu reng ai shara kaw na nbung katsi ai lam gaw battery galaw ai wa tsun da ai grau htum ai bungli galaw ai nbung katsi ai shara de du wa ai.

. Thermal hprawng ai lam gaw ① hte ② byin ai shaloi byin wa ai ngu dawdan da ai.

1)Dai hpaji jaw ai ladat hpe thermal runaway triggering ladat hku jai lang nna, thermal hprawng ai lam n byin wa yang, thermal propagation gaw mawdaw jawn ai ni hpe n hkrit tsang shangun na matu, lawu na hpaji jaw ai ladat lahkawng yan hpe lang nna thermal runaway n byin na hpe sakse madun ra ai.

2)Tsmal hprawng ai lam byin wa yang, thermal runaway alarm signal hpe wan (sh) bawm kapaw ai lam byin wa ai aten du hkra aten hpe ka matsing da u (gara gaw shawng byin ai lam shawng byin wa ai); ndai aten gaw 5 min hta n yawm na re.

Figure 6-6 Schematic Diagram of Heating Trigger Temperature Sensor Placement