{"id":19644,"date":"2023-11-02T07:09:57","date_gmt":"2023-11-02T07:09:57","guid":{"rendered":"http:\/\/dgbellvietnam.com\/lithium-ion-battery-thermal-runaway-test-part-1\/"},"modified":"2024-10-21T16:26:47","modified_gmt":"2024-10-21T09:26:47","slug":"lithium-ion-battery-thermal-runaway-test-part-1","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/lithium-ion-battery-thermal-runaway-test-part-1\/","title":{"rendered":"Th\u1eed nghi\u1ec7m tho\u00e1t nhi\u1ec7t pin Lithium-ion \u2013 Ph\u1ea7n 1"},"content":{"rendered":"
\n

D\u1ef1a tr\u00ean th\u00ed nghi\u1ec7m v\u1ec1 \u0111\u1eb7c t\u00ednh ch\u00e1y <\/span><\/span>do nhi\u1ec7t<\/span><\/span><\/a> c\u1ee7a pin lithium, c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00e1y do nhi\u1ec7t c\u1ee7a c\u00e1c ion lithium 18650 v\u1edbi l\u01b0\u1ee3ng \u0111i\u1ec7n t\u00edch l\u00e0 20%, 30%, 50%, 70% v\u00e0 100% \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft, bao g\u1ed3m s\u1ef1 lan truy\u1ec1n ch\u00e1y do nhi\u1ec7t, t\u1ed1c \u0111\u1ed9 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, nhi\u1ec7t \u0111\u1ed9, m\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 kh\u00ed gi\u1ea3i ph\u00f3ng. Ph\u00e2n t\u00edch c\u00e1c \u0111\u1eb7c t\u00ednh r\u1ee7i ro c\u1ee7a ch\u00e1y do nhi\u1ec7t c\u1ee7a pin lithium trong bu\u1ed3ng l\u00e1i, cabin v\u00e0 khoang h\u00e0ng, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y v\u00e0 th\u00f4ng gi\u00f3 b\u00ean trong v\u00e0 c\u00e1c c\u01a1 s\u1edf kh\u00e1c \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c \u0111\u00e1m ch\u00e1y pin lithium. Gi\u1edbi thi\u1ec7u th\u00ed nghi\u1ec7m ch\u00e1y do nhi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng thay \u0111\u1ed5i chuy\u1ebfn bay m\u00f4 ph\u1ecfng, cung c\u1ea5p t\u00e0i li\u1ec7u tham kh\u1ea3o \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c th\u00ed nghi\u1ec7m li\u00ean quan \u0111\u1ebfn pin lithium quy m\u00f4 l\u1edbn.<\/span><\/span><\/p>\n

Pin b\u1ecb m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t do qu\u00e1 tr\u00ecnh gia nhi\u1ec7t, \u0111o\u1ea3n m\u1ea1ch ho\u1eb7c va ch\u1ea1m l\u1ef1c b\u00ean ngo\u00e0i, kh\u00f4ng ch\u1ec9 gi\u1ea3i ph\u00f3ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kh\u00ed v\u00e0 nhi\u1ec7t m\u1ed9t c\u00e1ch d\u1eef d\u1ed9i m\u00e0 c\u00f2n d\u1ec5 d\u00e0ng lan truy\u1ec1n t\u1eeb pin n\u00e0y sang pin kh\u00e1c. M\u1eb7c d\u00f9 hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i pin, nh\u01b0ng c\u00f3 th\u1ec3 t\u00f3m t\u1eaft th\u00e0nh b\u1ed1n giai \u0111o\u1ea1n: \u0111\u1ea7u ti\u00ean, kh\u00ed lu\u00e2n phi\u00ean \u0111\u01b0\u1ee3c \u0111\u1ea9y ra t\u1eeb c\u00e1c l\u1ed7 nh\u1ecf (l\u1edbp v\u1ecf b\u00ean ngo\u00e0i b\u1ecb \u0111\u1ed1t ch\u00e1y \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c l\u1ed7 nh\u1ecf), sau \u0111\u00f3 c\u00e1c ch\u1ea5t b\u00ean trong tho\u00e1t ra kh\u1ecfi c\u00e1c l\u1ed7 nh\u1ecf hi\u1ec7n c\u00f3 \u1edf \u0111\u1ea7u d\u01b0\u01a1ng, sau \u0111\u00f3 c\u00e1c ch\u1ea5t b\u00ean trong b\u1ecb \u0111\u1ea9y ra v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c ch\u1ea5t b\u00ean trong b\u1ecb \u0111\u1ea9y ra. Khi \u0111\u1ee9ng th\u1eb3ng, d\u1ec5 x\u1ea3y ra n\u1ed5 theo h\u01b0\u1edbng n\u1eb1m ngang v\u00e0 kh\u00ed v\u00e0 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng theo h\u01b0\u1edbng th\u1eb3ng \u0111\u1ee9ng. C\u00e1c ch\u1ea5t b\u1ecb \u0111\u1ea9y ra ch\u1ee7 y\u1ebfu l\u00e0 \u0111\u1ed3ng, than ch\u00ec v\u00e0 nh\u00f4m.<\/span><\/span><\/p>\n

1 \u1ea2nh h\u01b0\u1edfng c\u1ee7a l\u01b0\u1ee3ng \u0111i\u1ec7n t\u00edch \u0111\u1ebfn \u0111\u1eb7c t\u00ednh tho\u00e1t nhi\u1ec7t<\/span><\/span><\/strong><\/span><\/h1>\n

V\u1ec1 nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a Tr\u1ea1ng th\u00e1i s\u1ea1c (SOC) \u0111\u1ebfn \u0111\u1eb7c t\u00ednh tho\u00e1t nhi\u1ec7t c\u1ee7a pin lithium-ion, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 t\u1ef1 b\u1ed1c ch\u00e1y c\u1ee7a pin niken coban 18650 l\u00e0 kho\u1ea3ng 10 \u2103. \u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a pin lithium-ion gi\u1ea3m khi SOC t\u0103ng v\u00e0 hi\u1ec7u \u1ee9ng d\u00e2y chuy\u1ec1n domino c\u1ee7a s\u1ef1 lan truy\u1ec1n tho\u00e1t nhi\u1ec7t \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh.<\/span><\/span><\/p>\n

Khi SOC c\u1ee7a pin t\u0103ng, nhi\u1ec7t \u0111\u1ed9 b\u1eaft \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh tho\u00e1t nhi\u1ec7t gi\u1ea3m d\u1ea7n, trong khi nhi\u1ec7t \u0111\u1ed9 k\u1ebft th\u00fac c\u1ee7a qu\u00e1 tr\u00ecnh tho\u00e1t nhi\u1ec7t t\u0103ng d\u1ea7n, v\u00e0 t\u1ed5n th\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng t\u0103ng d\u1ea7n. Khi SOC b\u1eb1ng 0%, h\u00e0m l\u01b0\u1ee3ng CO trong kh\u00ed sinh ra l\u00e0 cao nh\u1ea5t v\u00e0 \u0111\u1ed9c t\u00ednh kh\u00f3i l\u00e0 m\u1ea1nh nh\u1ea5t; \u1ede m\u1ee9c 50%, l\u01b0\u1ee3ng kh\u00ed th\u1ea3i sinh ra l\u00e0 t\u1ed1i \u0111a, nh\u01b0ng h\u00e0m l\u01b0\u1ee3ng CO t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y ph\u1ea3n l\u1ef1c c\u1ee7a pin lithium-ion l\u00e0 r\u00f5 r\u00e0ng nh\u1ea5t<\/span><\/span><\/p>\n

1.1 Truy\u1ec1n nhi\u1ec7t \u0111\u1ed9 m\u1ea5t ki\u1ec3m so\u00e1t<\/span><\/span><\/strong><\/span><\/h2>\n

Pin lithium-ion 18650 c\u00f3 SOC l\u00e0 20%, 30%, 50%, 70% v\u00e0 100% \u0111\u01b0\u1ee3c chia th\u00e0nh 5 nh\u00f3m, m\u1ed7i nh\u00f3m bao g\u1ed3m 4 pin v\u00e0 1 b\u1ed9 gia nhi\u1ec7t h\u00ecnh tr\u1ee5 100W. Ng\u01b0\u1eddi ta th\u1ea5y r\u1eb1ng khi SOC l\u00e0 50%, c\u1ea3 b\u1ed1n pin \u0111\u1ec1u b\u1ecb m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, v\u1edbi nhi\u1ec7t \u0111\u1ed9 \u0111\u1ea1t tr\u00ean 700 \u2103; Khi SOC l\u00e0 40%, hai pin b\u1ecb m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t; Khi SOC l\u00e0 30%, 70% v\u00e0 100%, ch\u1ec9 c\u00f3 m\u1ed9t pin m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t.<\/span><\/span><\/p>\n

1.2 T\u1ed1c \u0111\u1ed9 gi\u1ea3i ph\u00f3ng nhi\u1ec7t t\u1ed1i \u0111a<\/span><\/span><\/strong><\/span><\/h2>\n

Trong th\u00ed nghi\u1ec7m v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c chia th\u00e0nh 5 nh\u00f3m d\u1ef1a tr\u00ean c\u00e1c gi\u00e1 tr\u1ecb SOC l\u00e0 20%, 30%, 50%, 70% v\u00e0 100%. H\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c \u0111un n\u00f3ng b\u1eb1ng c\u1ed3n v\u00e0 c\u00e1c thay \u0111\u1ed5i v\u1ec1 nhi\u1ec7t c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c ghi l\u1ea1i b\u1eb1ng nhi\u1ec7t l\u01b0\u1ee3ng k\u1ebf h\u00ecnh n\u00f3n. T\u1ed1c \u0111\u1ed9 gi\u1ea3i ph\u00f3ng nhi\u1ec7t c\u1ef1c \u0111\u1ea1i (PHRR) \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c thay \u0111\u1ed5i trong SOC v\u00e0 t\u1ed1c \u0111\u1ed9 gi\u1ea3i ph\u00f3ng nhi\u1ec7t c\u1ef1c \u0111\u1ea1i (PHRR). K\u1ebft qu\u1ea3 cho th\u1ea5y PHRR t\u0103ng khi SOC t\u0103ng, v\u1edbi PHRR trung b\u00ecnh l\u00e0 50% v\u00e0 PHRR t\u1ed1i thi\u1ec3u l\u00e0 20%. Khi x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, gi\u00e1 tr\u1ecb PHRR t\u1ed1i \u0111a xu\u1ea5t hi\u1ec7n xung quanh 50% SOC, \u0111\u00e2y c\u0169ng l\u00e0 th\u1eddi \u0111i\u1ec3m d\u1ec5 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t nh\u1ea5t gi\u1eefa c\u00e1c pin v\u00e0 g\u00e2y ra m\u1ed1i nguy hi\u1ec3m l\u1edbn nh\u1ea5t<\/span><\/span><\/p>\n

1.3 Nhi\u1ec7t \u0111\u1ed9<\/span><\/span><\/strong><\/span><\/h2>\n

Kh\u00e1m ph\u00e1 m\u1ed1i quan h\u1ec7 gi\u1eefa nhi\u1ec7t \u0111\u1ed9 v\u00e0 s\u1ef1 thay \u0111\u1ed5i SOC trong pin lithium-ion 18650 trong c\u00e1c giai \u0111o\u1ea1n kh\u00e1c nhau c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t th\u00f4ng qua c\u00e1c th\u00ed nghi\u1ec7m \u0111o nhi\u1ec7t \u0111\u1ed9. Th\u00ed nghi\u1ec7m ph\u00e1t hi\u1ec7n ra r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 T trong l\u1ea7n gi\u1ea3i ph\u00f3ng kh\u00ed \u0111\u1ea7u ti\u00ean do m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o SOC v\u00e0 v\u1eabn \u1edf m\u1ee9c kho\u1ea3ng 200 \u2103; Nhi\u1ec7t \u0111\u1ed9 T2 trong l\u1ea7n gi\u1ea3i ph\u00f3ng kh\u00ed th\u1ee9 hai c\u0169ng kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o SOC, kho\u1ea3ng 260 \u2103. Nhi\u1ec7t \u0111\u1ed9 cao nh\u1ea5t T MAX trong to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t t\u0103ng theo s\u1ef1 gia t\u0103ng c\u1ee7a SOC. \u1ede m\u1ee9c 0%, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a l\u00e0 kho\u1ea3ng 600 \u2103 v\u00e0 \u1edf m\u1ee9c 100%, nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a v\u01b0\u1ee3t qu\u00e1 1000 \u2103.<\/span><\/span><\/p>\n

1.4 Gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng<\/span><\/span><\/strong><\/span><\/h2>\n

Kh\u1ea3o s\u00e1t s\u1ef1 m\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh m\u1ea5t nhi\u1ec7t trong th\u00ed nghi\u1ec7m m\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t nhi\u1ec7t. Sau l\u1ea7n gi\u1ea3i ph\u00f3ng kh\u00ed \u0111\u1ea7u ti\u00ean, kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t kho\u1ea3ng 2-3g, v\u00e0 sau l\u1ea7n gi\u1ea3i ph\u00f3ng kh\u00ed th\u1ee9 hai, kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t kho\u1ea3ng 17g. T\u1ed5ng th\u1eddi gian c\u1ee7a hai l\u1ea7n gi\u1ea3i ph\u00f3ng l\u00e0 kho\u1ea3ng 2 gi\u00e2y. Kh\u1ea3o s\u00e1t m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111\u1ecbnh lu\u1eadt bi\u1ebfn thi\u00ean c\u1ee7a m\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t nhi\u1ec7t v\u00e0 SOC, ng\u01b0\u1eddi ta th\u1ea5y r\u1eb1ng kh\u1ed1i l\u01b0\u1ee3ng m sau l\u1ea7n gi\u1ea3i ph\u00f3ng kh\u00ed \u0111\u1ea7u ti\u00ean kh\u1ecfi qu\u00e1 tr\u00ecnh m\u1ea5t nhi\u1ec7t kh\u00f4ng thay \u0111\u1ed5i theo s\u1ef1 thay \u0111\u1ed5i c\u1ee7a SOC, v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t trong giai \u0111o\u1ea1n n\u00e0y l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb kh\u00f4ng \u0111\u1ed5i; Kh\u1ed1i l\u01b0\u1ee3ng m2 sau l\u1ea7n gi\u1ea3i ph\u00f3ng kh\u00ed th\u1ee9 hai gi\u1ea3m khi SOC t\u0103ng. Kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t c\u1ee7a pin trong to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh m\u1ea5t nhi\u1ec7t cho th\u1ea5y xu h\u01b0\u1edbng t\u0103ng khi SOC t\u0103ng. Trong c\u00f9ng m\u1ed9t SOC, kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t nhi\u1ec7t l\u00e0 m\u1ed9t h\u00e0m tuy\u1ebfn t\u00ednh c\u1ee7a dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef. Dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef c\u00e0ng l\u1edbn th\u00ec kh\u1ed1i l\u01b0\u1ee3ng m\u1ea5t nhi\u1ec7t c\u00e0ng nhi\u1ec1u.<\/span><\/span><\/p>\n

1.5 Gi\u1ea3i ph\u00f3ng kh\u00ed<\/span><\/span><\/strong><\/span><\/h2>\n

Trong th\u00ed nghi\u1ec7m nguy c\u01a1 r\u00f2 r\u1ec9 kh\u00ed, 400 pin lithium-ion 18650 c\u00f3 SOC l\u00e0 50% \u0111\u01b0\u1ee3c \u0111\u1eb7t trong m\u1ed9t bu\u1ed3ng \u00e1p su\u1ea5t r\u1ed9ng 10 m\u00e9t vu\u00f4ng \u0111\u1ec3 tr\u1ea3i nghi\u1ec7m hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t. \u00c1p su\u1ea5t \u0111o \u0111\u01b0\u1ee3c cho th\u1ea5y \u00e1p su\u1ea5t t\u1ed1i \u0111a m\u00e0 ch\u00fang c\u00f3 th\u1ec3 t\u1ea1o ra l\u00e0 193,1kPa. Khi m\u1ed9t pin duy nh\u1ea5t m\u1ea5t ki\u1ec3m so\u00e1t nhi\u1ec7t, kho\u1ea3ng 6L kh\u00ed d\u1ec5 ch\u00e1y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng trong v\u00f2ng 3 gi\u00e2y v\u00e0 t\u1ed5ng l\u01b0\u1ee3ng kh\u00ed \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng v\u00e0 quy lu\u1eadt c\u1ee7a t\u1eebng th\u00e0nh ph\u1ea7n t\u0103ng l\u00ean khi SOC t\u0103ng \u0111\u01b0\u1ee3c thu \u0111\u01b0\u1ee3c.<\/span><\/span><\/p>\n

Th\u00e0nh ph\u1ea7n kh\u00ed c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i pin. Ti\u1ebfn h\u00e0nh c\u00e1c th\u00ed nghi\u1ec7m ki\u1ec3m tra \u00e1p su\u1ea5t trong khoang h\u00e0ng 737. \u0110o \u00e1p su\u1ea5t t\u1ea1o ra do \u0111\u00e1nh l\u1eeda kh\u00ed tho\u00e1t ra t\u1eeb qu\u00e1 tr\u00ecnh tho\u00e1t nhi\u1ec7t c\u1ee7a pin lithium trong khoang h\u00e0ng 737 \u1edf tr\u1ea1ng th\u00e1i m\u00f4i tr\u01b0\u1eddng th\u1ef1c t\u1ebf l\u00e0 70% c\u00f4ng su\u1ea5t h\u00e0ng. K\u1ebft qu\u1ea3 cho th\u1ea5y khi kh\u00ed tho\u00e1t ra t\u1eeb qu\u00e1 tr\u00ecnh tho\u00e1t nhi\u1ec7t c\u1ee7a pin lithium-ion 18650 v\u1edbi 8 SOC l\u00e0 50% ho\u1eb7c 3 SOC l\u00e0 100% b\u1ecb \u0111\u00e1nh l\u1eeda, kh\u00f3i ng\u1ecdn l\u1eeda v\u00e0 \u00e1p su\u1ea5t t\u1ea1o ra s\u1ebd khi\u1ebfn h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y trong khoang h\u00e0ng b\u1ecb h\u1ecfng.<\/span><\/span><\/p>\n

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D\u1ef1a tr\u00ean th\u00ed nghi\u1ec7m v\u1ec1 \u0111\u1eb7c t\u00ednh ch\u00e1y do nhi\u1ec7t c\u1ee7a pin lithium, c\u00e1c \u0111\u1eb7c t\u00ednh ch\u00e1y do nhi\u1ec7t c\u1ee7a c\u00e1c ion lithium 18650 v\u1edbi l\u01b0\u1ee3ng \u0111i\u1ec7n t\u00edch l\u00e0 20%, 30%, 50%, 70% v\u00e0 100% \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft, bao g\u1ed3m s\u1ef1 lan truy\u1ec1n ch\u00e1y do nhi\u1ec7t, t\u1ed1c \u0111\u1ed9 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, nhi\u1ec7t \u0111\u1ed9, m\u1ea5t<\/p>\n","protected":false},"author":1,"featured_media":19645,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-cong-nghe"],"acf":[],"_links":{"self":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=19644"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19644\/revisions"}],"predecessor-version":[{"id":21951,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19644\/revisions\/21951"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19645"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}