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<\/h1>\n<\/h1>\nBattery Degradation (s\u1ef1 suy gi\u1ea3m dung l\u01b0\u1ee3ng pin)<\/strong> l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng t\u1ea5t y\u1ebfu x\u1ea3y ra v\u1edbi m\u1ecdi lo\u1ea1i pin s\u1ea1c theo th\u1eddi gian. D\u00f9 b\u1ea1n s\u1eed d\u1ee5ng pin Lithium LiFePO4, Lithium-ion hay \u1eafc quy ch\u00ec (Lead-acid)<\/strong> cho h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi, xe \u0111i\u1ec7n (EV) hay b\u1ed9 l\u01b0u \u0111i\u1ec7n UPS, vi\u1ec7c hi\u1ec3u r\u00f5 c\u01a1 ch\u1ebf suy gi\u1ea3m dung l\u01b0\u1ee3ng s\u1ebd gi\u00fap b\u1ea1n d\u1ef1 \u0111o\u00e1n tu\u1ed5i th\u1ecd pin, l\u00ean k\u1ebf ho\u1ea1ch thay th\u1ebf v\u00e0 t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 \u0111\u1ea7u t\u01b0.<\/p>\n N\u1ebfu b\u1ea1n \u0111ang v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng, b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 nguy\u00ean nh\u00e2n khi\u1ebfn pin b\u1ecb chai, c\u00e1ch t\u00ednh dung l\u01b0\u1ee3ng c\u00f2n l\u1ea1i theo th\u1eddi gian v\u00e0 nh\u1eefng gi\u1ea3i ph\u00e1p gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd pin.<\/p>\n Battery Degradation l\u00e0 qu\u00e1 tr\u00ecnh pin m\u1ea5t d\u1ea7n kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng<\/strong> theo th\u1eddi gian s\u1eed d\u1ee5ng.<\/p>\n M\u1ed7i chu k\u1ef3 s\u1ea1c\/x\u1ea3 \u0111\u1ec1u t\u1ea1o ra c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc b\u00ean trong pin. Sau h\u00e0ng tr\u0103m ho\u1eb7c h\u00e0ng ngh\u00ecn chu k\u1ef3, c\u00e1c ph\u1ea3n \u1ee9ng n\u00e0y khi\u1ebfn dung l\u01b0\u1ee3ng th\u1ef1c t\u1ebf gi\u1ea3m xu\u1ed1ng so v\u1edbi dung l\u01b0\u1ee3ng ban \u0111\u1ea7u.<\/p>\n V\u00ed d\u1ee5:<\/p>\n \u0110i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c pin v\u1eabn ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng th\u1eddi gian s\u1eed d\u1ee5ng ng\u1eafn h\u01a1n \u0111\u00e1ng k\u1ec3.<\/p>\n C\u00f3 r\u1ea5t nhi\u1ec1u y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 l\u00e3o h\u00f3a c\u1ee7a pin.<\/p>\n M\u1ed7i c\u00f4ng ngh\u1ec7 pin c\u00f3 t\u1ed1c \u0111\u1ed9 suy gi\u1ea3m kh\u00e1c nhau.<\/p>\n Pin LiFePO4<\/strong> hi\u1ec7n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 c\u00f3 tu\u1ed5i th\u1ecd cao nh\u1ea5t v\u00e0 ph\u00f9 h\u1ee3p cho c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi l\u01b0u tr\u1eef.<\/p>\n Pin c\u00e0ng x\u1ea3 s\u00e2u th\u00ec tu\u1ed5i th\u1ecd c\u00e0ng gi\u1ea3m.<\/p>\n V\u00ed d\u1ee5:<\/p>\n Trong \u0111\u00f3, vi\u1ec7c th\u01b0\u1eddng xuy\u00ean x\u1ea3 \u0111\u1ebfn 100% s\u1ebd l\u00e0m pin xu\u1ed1ng c\u1ea5p nhanh h\u01a1n r\u1ea5t nhi\u1ec1u.<\/p>\n Khuy\u1ebfn ngh\u1ecb:<\/p>\n Nhi\u1ec7t \u0111\u1ed9 l\u00e0 “k\u1ebb th\u00f9” l\u1edbn nh\u1ea5t c\u1ee7a pin.<\/p>\n Nhi\u1ec7t \u0111\u1ed9 cao s\u1ebd:<\/p>\n Trong khi \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 qu\u00e1 th\u1ea5p l\u00e0m gi\u1ea3m dung l\u01b0\u1ee3ng s\u1eed d\u1ee5ng t\u1ea1m th\u1eddi.<\/p>\n Nhi\u1ec7t \u0111\u1ed9 l\u00fd t\u01b0\u1edfng:<\/p>\n 20\u201325\u00b0C<\/strong><\/p>\n S\u1ea1c nhanh ho\u1eb7c x\u1ea3 v\u1edbi d\u00f2ng l\u1edbn s\u1ebd:<\/p>\n \u0110\u00f3 l\u00e0 l\u00fd do c\u00e1c b\u1ed9 s\u1ea1c ch\u1ea5t l\u01b0\u1ee3ng lu\u00f4n ki\u1ec3m so\u00e1t d\u00f2ng s\u1ea1c ph\u00f9 h\u1ee3p.<\/p>\n M\u1ed9t s\u1ed1 th\u00f3i quen gi\u00fap pin b\u1ec1n h\u01a1n:<\/p>\n Khi pin suy gi\u1ea3m dung l\u01b0\u1ee3ng:<\/p>\n V\u00ed d\u1ee5:<\/p>\n Pin Lithium:<\/p>\n N\u0103ng l\u01b0\u1ee3ng ban \u0111\u1ea7u:<\/p>\n 100 \u00d7 12 = 1.200Wh<\/strong><\/p>\n N\u1ebfu pin suy gi\u1ea3m 3% m\u1ed7i n\u0103m<\/strong>, sau 10 n\u0103m<\/strong>:<\/p>\n Dung l\u01b0\u1ee3ng c\u00f2n kho\u1ea3ng:<\/p>\n 74Ah<\/strong><\/p>\n N\u0103ng l\u01b0\u1ee3ng c\u00f2n l\u1ea1i:<\/p>\n 74 \u00d7 12 \u2248 888Wh<\/strong><\/p>\n Nh\u01b0 v\u1eady h\u1ec7 th\u1ed1ng \u0111\u00e3 m\u1ea5t h\u01a1n 300Wh<\/strong> kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef.<\/p>\n \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 r\u1ea5t quan tr\u1ecdng khi thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi l\u01b0u tr\u1eef.<\/p>\n L\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho \u0111i\u1ec7n m\u1eb7t tr\u1eddi.<\/p>\n Dung l\u01b0\u1ee3ng c\u00f2n l\u1ea1i \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c:<\/p>\n Remaining Capacity = Initial Capacity \u00d7 (1 \u2212 Degradation Rate\/100)\u207f<\/strong><\/p>\n Trong \u0111\u00f3:<\/p>\n V\u00ed d\u1ee5:<\/p>\n Dung l\u01b0\u1ee3ng c\u00f2n:<\/p>\n 200 \u00d7 (1\u22120.02)^8<\/p>\n \u2248 170Ah<\/strong><\/p>\n C\u00f4ng c\u1ee5 t\u00ednh to\u00e1n Battery Degradation gi\u00fap b\u1ea1n nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh:<\/p>\n Ch\u1ec9 c\u1ea7n nh\u1eadp:<\/p>\n H\u1ec7 th\u1ed1ng s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u00ednh to\u00e1n k\u1ebft qu\u1ea3.<\/p>\n \u0110\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd pin, b\u1ea1n n\u00ean:<\/p>\n \u2705 Kh\u00f4ng x\u1ea3 pin d\u01b0\u1edbi 20%.<\/p>\n \u2705 Kh\u00f4ng s\u1ea1c \u0111\u1ea7y 100% trong th\u1eddi gian d\u00e0i n\u1ebfu kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n \u2705 S\u1eed d\u1ee5ng b\u1ed9 s\u1ea1c \u0111\u00fang \u0111i\u1ec7n \u00e1p v\u00e0 \u0111\u00fang c\u00f4ng ngh\u1ec7 pin.<\/p>\n \u2705 Gi\u1eef nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng kho\u1ea3ng 20\u201325\u00b0C.<\/p>\n \u2705 Ki\u1ec3m tra dung l\u01b0\u1ee3ng v\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh k\u1ef3.<\/p>\n \u2705 H\u1ea1n ch\u1ebf s\u1ea1c nhanh li\u00ean t\u1ee5c.<\/p>\n \u2705 Kh\u00f4ng \u0111\u1ec3 pin l\u00e2u ng\u00e0y kh\u00f4ng s\u1eed d\u1ee5ng.<\/p>\n \u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n m\u1eb7t tr\u1eddi, khi dung l\u01b0\u1ee3ng pin c\u00f2n d\u01b0\u1edbi 60%<\/strong> so v\u1edbi ban \u0111\u1ea7u, kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3 v\u00e0 c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u00e1p \u1ee9ng nhu c\u1ea7u s\u1eed d\u1ee5ng h\u1eb1ng ng\u00e0y.<\/p>\n L\u00fac n\u00e0y, b\u1ea1n n\u00ean c\u00e2n nh\u1eafc:<\/p>\n Vi\u1ec7c ch\u1ee7 \u0111\u1ed9ng l\u1eadp k\u1ebf ho\u1ea1ch s\u1ebd gi\u00fap tr\u00e1nh t\u00ecnh tr\u1ea1ng thi\u1ebfu \u0111i\u1ec7n v\u00e0 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh.<\/p>\n\n
\n<\/div>\nBattery Degradation L\u00e0 G\u00ec?<\/h1>\n
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\n<\/div>\nV\u00ec Sao Pin B\u1ecb Suy Gi\u1ea3m Dung L\u01b0\u1ee3ng?<\/h1>\n
1. Lo\u1ea1i C\u00f4ng Ngh\u1ec7 Pin<\/h2>\n
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\n Lo\u1ea1i pin<\/th>\n T\u1ed1c \u0111\u1ed9 suy gi\u1ea3m trung b\u00ecnh<\/th>\n<\/tr>\n \n LiFePO4<\/td>\n 1\u20132%\/n\u0103m<\/td>\n<\/tr>\n \n Lithium-ion<\/td>\n 2\u20135%\/n\u0103m<\/td>\n<\/tr>\n \n \u1eaec quy ch\u00ec (Lead-acid)<\/td>\n 4\u201310%\/n\u0103m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n
\n<\/div>\n2. \u0110\u1ed9 S\u00e2u X\u1ea3 Pin (Depth of Discharge – DoD)<\/h2>\n
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\n<\/div>\n3. Nhi\u1ec7t \u0110\u1ed9 L\u00e0m Vi\u1ec7c<\/h2>\n
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\n<\/div>\n4. T\u1ed1c \u0110\u1ed9 S\u1ea1c V\u00e0 X\u1ea3<\/h2>\n
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\n<\/div>\n5. C\u00e1ch S\u1eed D\u1ee5ng V\u00e0 B\u1ea3o Qu\u1ea3n<\/h2>\n
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\n<\/div>\nBattery Degradation \u1ea2nh H\u01b0\u1edfng Th\u1ebf N\u00e0o \u0110\u1ebfn H\u1ec7 Th\u1ed1ng \u0110i\u1ec7n M\u1eb7t Tr\u1eddi?<\/h1>\n
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\n<\/div>\nTu\u1ed5i Th\u1ecd Trung B\u00ecnh C\u1ee7a C\u00e1c Lo\u1ea1i Pin<\/h1>\n
Pin LiFePO4<\/h2>\n
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\n<\/div>\nPin Lithium-ion<\/h2>\n
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\n<\/div>\n\u1eaec Quy Ch\u00ec (Lead-acid)<\/h2>\n
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\n<\/div>\nC\u00f4ng Th\u1ee9c T\u00ednh Dung L\u01b0\u1ee3ng Pin Sau Nhi\u1ec1u N\u0103m<\/h1>\n
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\n<\/div>\nBattery Degradation Calculator C\u00f3 Th\u1ec3 Gi\u00fap G\u00ec?<\/h1>\n
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\n<\/div>\nC\u00e1ch Gi\u1ea3m T\u1ed1c \u0110\u1ed9 Suy Gi\u1ea3m Dung L\u01b0\u1ee3ng Pin<\/h1>\n
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\n<\/div>\nKhi N\u00e0o N\u00ean Thay Pin?<\/h1>\n
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