¼Ò·® ÷°¡(1wt%~)·Î Àüµµ¼º(µµÀü¼º)À» ¹ßÇö.
¡¤ Gramax-S ¼Ò°³ÀÚ·á
Gramax vs Gramax S
¡¤ Gramax ¥á – HP type anode materials
¸®Æ¬ ÀÌ¿Â ÀüÁö À½±Ø Àç·á
* Ư¡ 
- ÄÚÅ©½º ÆÄ»ý Àç·á
- ºÎµå·¯¿î ź¼ÒÀÇ ÀÏÁ¾
* LIBÀÇ ¾ç±Ø È°¼º Àç·á·Î »ç¿ë
- Çϵå ź¼Ò¿Í ȣȯ °¡´ÉÇÑ C/DÇÁ·ÎÇÊ
- Á¦3ÀÚ Æò°¡¿¡¼´Â ´ëºÎºÐÀÇ Æ¯¼ºÀÌ Çϵå ź¼Òº¸´Ù ¿ì¼öÇÑ °ÍÀ¸·Î º¸ÀÔ´Ï´Ù.
- ÇÕ¸®ÀûÀÎ °¡°Ý´ë
[Gramax(Ç¥ÁØ)¿Í ºñ±³]
| Gramax | Gramax ¥á |
Heat Treat Temperature | Lower than artificial graphite | Lower than Gramax |
| True density | Almost same as Graphite (¢¦£².£²g/cm3) | A bit smaller than Graphite (1.9-2.2g/cm3 ¡ØDepend on Grade) |
| 1st D/C effecienty | Almost same as Graphite (94-95%) | Lower than Gramax (75-90% ¡ØDepend on Grade) |
| C-D profile | Flat like graphite | Slope like hard carbon (HC) |
* Gramax ¥á °³³ä
- ÃæÀü Ư¼º °³¼±(±Þ¼Ó ÃæÀü °¡´É)
- HCº¸´Ù Àú·ÅÇÑ ºñ¿ë
- HEV¿¡ ƯÈ÷ ÀûÇÕÇÑ ¼ÒÀç
[ÃæÀü ¹× ºÐ¸® ÇÁ·ÎÆÄÀÏ]
| Charging (mAh∙g) | DisCharging (mAh∙g) | 1st C/D Efficiency (%) |
Gramax 90 | 259 | 244 | 94.2 |
Gramax ¥á1 | 372 | 284 | 76.3 |
Gramax ¥á2 | 305 | 253 | 83.0 |
Gramax ¥á3 | 265 | 222 | 83.8 |
[Æò°¡ ´É·Â (Charging)]
* Gramax ¥á ´Â ³ôÀº ¼Óµµ¿¡¼µµ ÃæÀü °¡´ÉÇÏ´Ù.
[Æò°¡ ´É·Â (Discharging)]
* Gramax ¥á ´Â ¿©ÀüÈ÷ ¾çÈ£ÇÑ ¹æÀü Ư¼ºÀ» ³ªÅ¸³½´Ù.
[PC Rsistance]
- C-D Profile of Gramax ¥á2
| Charging (mAh∙g) | DisCharging (mAh∙g) | 1st C/D Efficiency (%) |
EC/2EMC | 305 | 253 | 83.0 |
PC/EC/EMC | 300 | 250 | 83.3 |
* Gramax ¥á ´Â PC¿ëÁ¦¿¡ ´ëÇÑ ¶Ù¾î³ ³»¼ºÀ» º¸¿©ÁØ´Ù.
¢º Full Cell Data with Gramax ¥á
[Cell ±¸¼º 1]
* Àü±Ø ±¸¼º
- ¾ç±Ø Electrode
LNCM : Àüµµ¼º : ¹ÙÀδõ = 92 : 4 : 4
- À½±Ø Electrode
Gramax ¥á: È°¼º ¹°Áú : ¹ÙÀδõ = 95.0: 5.0
HC £º È°¼º ¹°Áú : Àüµµ¼º : ¹ÙÀδõ = 94.5 : 0.5 : 5.0
* Cell ±ÕÇü
- Gramax ¥á
Electrode | Active Material | Load | Discharge Capacity | Electrode Density | Cell Thickness |
Positive | LNCM | 7.8¡¾0.1mg/cm2 | 145mAh/g | 2.9¡¾0.1g/cm3 | - |
Negative | Gramax ¥á | 5.0¡¾0.1mg/cm2 | 240mAh/g | 1.3¡¾0.1g/cm3 | 1.99 |
- HC
Electrode | Active Material | Load | Discharge Capacity | Electrode Density | Cell Thickness |
Positive | LNCM | 7.5¡¾0.1mg/cm2 | 145mAh/g | 3.0¡¾0.1g/cm3 | - |
Negative | Hard Carbon | 3.0¡¾0.1mg/cm2 | 400mAh/g | 1.1¡¾0.1g/cm3 | 1.99 |
[Cell ±¸¼º 2]
* ±âŸ ¼¿ »ç¾ç
- ¾ç±Ø: Carbon Black + Graphite
- ¹ÙÀδõ ¾ç¼º: PVdF
- ½Å°æ Àü´Þ ¹°Áú: Carbon Black
- ½Å°æ Àü´Þ ¹ÙÀδõ: PV£äF
- Àü·ù ¼öÁý±â: +: Al (t=15um), -: Cu(t=10um)
- ºÐ¸®±â: polyolefin-type (25um)
- ÀüÇØÁú: 1mol/l, LiPF6 EC:EMC(3:7)
- ¼¿ ÇüÅÂ: Al Laminated Cell
- Àü±Ø ¿µ¿ª: +£º 18.0cm2, -: 19.8cm2
- ¼¿ Å©±â£º 90mm ¡¿ 55mm
* Æò°¡ Ç׸ñ
- Ãʱâ Ư¼º
- À¯·® ´É·Â
- ÃæÀü ¼Óµµ ¼º´É
- Àú¿Â Ư¼º(¹èÃâ)
- ´Ù¾çÇÑ SOC(¹èÃâ)¿¡¼ÀÇ DC-R
- Ç÷ÎÆ® ÃæÀü Ư¼º
- 1C1CC3D»çÀÌŬ
[Charge/Discharge Profile (Ãʱâ, ÇöÀç »óÅÂ)]
- ¼¿ ¼³°è°¡ µÑ »çÀÌ¿¡ ´Ù¸£±â ¶§¹®¿¡ HC¿¡¼ ÀÌ ºñ±³´Â ÀûÇÕÇÏÁö ¾Ê´Ù.
[Charge/Discharge Profile (Ãʱâ, º¸»ó ÈÄ)]
- ¼¼Æ÷ µÎ²²·Î º¸Á¤µÈ ÈÄ¿¡µµ, ¼¼Æ÷ ¿ë·®Àº Gramax ¥áÀÇ °æ¿ì HCÀÇ °æ¿ìº¸´Ù ¾à°£ Å©´Ù.
[Discharge ºñÀ² ´É·Â]
- ÃÖ´ë 7CA¹èÃâ±îÁö Gramax¥á°¡ HCº¸´Ù ¿ì¼öÇÑ °ÍÀ¸·Î º¸ÀδÙ. 10CA¹æÀü¿¡¼,Gramax¥á¿¡ ´ëÇÑ ´õ µÎ²¨¿î Àü±Ø ¹×/¶Ç´Â Àüµµ¼º Àç·á´Â ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê¾ÒÀ» ¼ö ÀÖ´Ù.
[DC-IR at various SOC (Discharge)]
- °í¼Ó ¹æÀü°ú ´ëÁ¶ÀûÀ¸·Î, Gramax¥á´Â Àü±Ø µÎ²²¿¡ ´ëÇÑ ´ÜÁ¡¿¡µµ ºÒ±¸ÇÏ°í HCº¸´Ù ³·Àº DC-j¸¦ ³ªÅ¸³½´Ù.
[»çÀÌŬ Ư¼º]
- 200»çÀÌŬ(1C/1C)ÈÄ ¿ë·® º¸Á¸Àº GramaxÀÇ °æ¿ì 95%ÀÌ´Ù.
HCÀÇ °æ¿ì °¢°¢ 92%.
Ãß°¡ÀûÀÎ »çÀÌŬ Å×½ºÆ®¸¦ ½ÃÀÛÇß´Ù.
(3C/3C¿¡¼ 400»çÀÌŬ±îÁö, 5C/5C¿¡¼ 600»çÀÌŬ±îÁö.)
[°í¿Â ÀúÀå]
- 20ÀÏ ÈÄ ¿ë·® º¸Á¸·üÀº 85%, Gramax ¥áÀÇ °æ¿ì 89%, HCÀÇ °æ¿ì 78%¹× 82%ÀÔ´Ï´Ù.
[¿ä¾à(ÀÓ½Ã)]
- ¼¼Æ÷ µÎ²² º¸Á¤ ÈÄ¿¡µµ Gramax ¥á°¡ ´õ ³ªÀº °ÍÀ¸·Î ³ªÅ¸³ª°Å³ª
ÃÖ¼ÒÇÑ HC¿Í ºñ±³ÇÑ È£È¯ Ư¼ºÀ» °¡Áø´Ù.
- Àüµµ¼º ÷°¡Á¦¸¦ »ç¿ëÇϰųª ´Ù¸¥ ¼¿ ¼³°è¸¦ äÅÃÇÒ ¶§
10CA¹æÀü ½Ã ¹×/¶Ç´Â -20¡É¿¡¼ ¿ë·® º¸À¯·®ÀÎ Gramax-0E°¡ °³¼±µÉ ¼ö ÀÖ´Ù.
- Gramax ¥á¸¦ HC·Î ´ëüÇÒ ¼ö ÀÖ´Ù°í º¸ÀδÙ.
¡Û OMAC-R
(¸®Æ¬ÀÌ¿Â ÀüÁö À½±ØÀç·á)
[°³³ä]
• ÀÚ¿¬ È濬 Ç¥¸é ó¸®
• ÀÌÀü OMAC¿Í °ÅÀÇ µ¿ÀÏÇÑ ¹°¸®Àû ¹× Àü±â ÈÇÐÀû Ư¼º
• ÇÕ¸®ÀûÀÎ °¡°Ý´ë
* Process of OMAC and OMAC-R
| Raw Materials | Mixing | Carbonization | Classification | Shipping |
OMAC | China | Japan |
OMAC-R | China |
[OMAC-RÀÇ ¹°¸®Àû Ư¼º]
| Particle size distribution (um) | SSA (m2/g) | Tap Density (g/cm3) |
D10 | D50 | D90 | Dmax |
OMAC-R | 7.4 | 11.7 | 19.4 | 44.0 | 3.58 | 0.98 |
| OMAC12¡Ø | - | 12.5¡¾1.0 | - | ≦44 | 3.5¡¾0.3 | >1.0 |
¡Ø OMAC12¿¡ ´ëÇÑ ¿¹ºñ »ç¾ç
[PSD profile of OMAC12 and OMAC-R ]
[OMACR-RÃʱâ C3DƯ¼º]
| Charging (mAh/g) | Discharging (mAh/g) | 1st C/D Efficiency |
OMAC-R | 382.5 | 357.3 | 93.4% |
OMAC12¡Ø | Irreversible cap. ≦30 | ≧350 | £¾92% |
¡Ø OMAC12ÀÇ ÀÏ¹Ý °ª
[1st C/D profile of OMAC-R]
[OMAC-RÀÇ ÃæÀü Ư¼º (Half Cell)]
| Charging amount to 0V at C.C (mAh/g) |
0.3C | 1.0C | 3.0C | 5.0C | 10.0C |
OMAC-R | 333.1 | 116.5 | 27.4 | 15.7 | 9.1 |
OMAC12 | 339.6 | 139.8 | 34.1 | 16.5 | 8.9
|
[OMAC-RÀÇ ¹æÀü Ư¼º (Half Cell)]
| Discharging amount to 1.2V at C.C./ (mAh/g) |
0.3C | 1.0C | 3.0C | 5.0C | 10.0C |
OMAC-R | 359.9 | 358.5 | 348.0 | 287.9 | 106.8 |
OMAC12 | 357.7 | 357.7 | 348.5 | 288.5 | 95.1
|
* OMAC-RÀÇ SEMÀ̹ÌÁö
¡Û n-CF
Ä«º» ºÐ¸», Ä«º» ÆÄ¿ì´õ (Carbon Powder)
[°³³ä]
• ¹°¸®Àû Å©±â´Â V/G/P/P¿Í O/CCF»çÀÌ (Á÷°æ:4mm¹Ì¸¸)
• °íÇ°Áú µ¿À§ ¿ø¼Ò ÇÇÄ¡, ȸÀü ±â¼ú ¹× ¾ÈÁ¤È ±â¼úÀ» È°¿ëÇÕ´Ï´Ù.
* SEMÀ̹ÌÁö (¹Ð¸µ ÀÛ¾÷ Àü)
[´Ù¸¥ Àüµµ¼º Àç·á¿Í ºñ±³ÇÑ ¹°¸®Àû Ư¼º]
| SSA (m2/g) | Electroconductivity (S/cm) | Compressed density (g/cm3) |
VGCF | 11.28 | 11.99 | 0.87 |
Denka Black | 70.07 | 6.67 | 0.60 |
£îCF-1 | 1.62 | 4.29 | 0.94 |
£îCF-2 | 1.56 | 6.44 | 1.02 |
£îCF-3 | 0.75 | 22.36 | 1.21 |
[È¿À²ÀûÀΠù¹ø° C/D]
| 1st Charging amount (mAh/g) | 1st Discharging amount (mAh/g) | 1st C/D Efficiency (mAh/g) |
MCMB £«VGCF | 341 | 329 | 96.3 |
MCMB £« Denka Black | 349 | 328 | 94.2 |
MCMB £« nCF-1 | 350 | 332 | 94.7 |
MCMB £« nCF-2 | 342 | 330 | 96.6 |
MCMB £« nCF-3 | 343 | 330 | 96.3
|
[½Å¼ÓÇÑ ºÐ¸® ±â´É]
| 0.3C | 1C | 3C |
MCMB £«VGCF | 329 £¨100%) | 323 £¨98%£© | 300 £¨91%£© |
MCMB £« Denka Black | 328 £¨100%) | 324 £¨99%£© | 300 £¨92%£© |
MCMB £« nCF-1 | 332 £¨100%) | 325 £¨98%£© | 286 £¨86%£© |
MCMB £« nCF-2 | 330 £¨100%) | 324 £¨98%£© | 304 £¨92%£© |
MCMB £« nCF-3 | 330 £¨100%) | 326 £¨98%£© | 303 £¨92%£© |
