对第1代丰田Mirai一些参数的核算和解读
【关键词】 燃料电池 功率 效率 极化曲线 内阻 活性面积
参数
|
第0代Mirai
|
第1代Mirai
|
第2代Mirai
|
长×宽×高/(mm×mm×mm)
|
4 735×1 815×1 685
|
4 890×1 815×1 535
|
4 975×1 885×1 470
|
整备质量/kg
|
1 880
|
1 850
|
1 930
|
风阻系数
|
―
|
0.29
|
―
|
座位数
|
5
|
4
|
5
|
轮胎规格
|
―
|
215/55 R17
|
235/55 R19
|
最高车速/(km/h)
|
153
|
175
|
175
|
0~100km/h加速时间/s
|
―
|
9.6①
|
9.2
|
续驶里程/km
|
―
|
JC08:650
(NEDC:502) |
XLE版:JC08:850(NEDC:647)
Limited版:JC08:750(NEDC:575) |
配置及参数
|
第0代Mirai
|
第1代Mirai
|
第2代Mirai
|
|
燃料电池电堆
︵含端板︶及系统 |
类型
|
聚合物电解质燃料电池
|
||
电堆体积(含端板、紧固件等/不含端板、紧固件等)/L
|
64/47
|
37/33
|
29/24
|
|
电堆质量(含端板、紧固件等)/kg
|
108
|
56
|
32
|
|
电堆最大输出功率/kW
|
90
|
114
|
128
|
|
电堆体积功率(含端板、紧固件等/不含端板、紧固件等)/(kW/L)①
|
1.4/1.9
|
3.1/3.5
|
4.4/5.4
|
|
电堆质量功率(含端板)
/(kW/kg)② |
0.83
|
2.0
|
4.0
|
|
电堆总有效反应面积/m2
|
―
|
9.91
|
―
|
|
最大面功率密度/(W/cm2)③
|
―
|
1.15
|
―
|
|
一个电堆中的单体个数
|
400片,2列
|
370片④,1列
|
330片,1列
|
|
前端板(包括岐管)材料
|
―
|
铝+树脂
|
―
|
|
后端板材料
|
―
|
铝
|
―
|
|
空压机峰值功率/kW
|
20
|
|||
氢循环泵最大功率/W
|
430
|
|||
升压变换器
|
最大输出电压650V DC,效率96%~97%
|
|||
燃料电池单体
|
单体厚度/mm
|
1.68
|
1.34
|
1.10
|
单体质量/g
|
166
|
102
|
―
|
|
部件材料
|
双极板
|
不锈钢板成型
|
Ti金属板冲压成型及改性
|
|
ME
A |
质子交换膜(PEM)
|
戈尔公司的Select复合膜
|
||
催化剂层(CL)
|
科特拉公司的碳载体Pt催化剂
|
|||
气体扩散层(GDL)
|
日本东丽公司的碳纤维纸
|
|||
三合一电驱动
|
电机类型
|
交流永磁同步电机
|
||
电机额定功率/kW
|
―
|
―
|
48.0
|
|
电机峰值功率/kW
|
90
|
113
|
134
|
|
电机峰值扭矩/Nm
|
260
|
335
|
300
|
|
主减速比
|
―
|
8.779
|
11.691
|
|
储氢罐
|
类型
|
Ⅳ型
|
Ⅳ型
|
Ⅳ型
|
个数
|
4
|
2
|
3
|
|
总容积/L
|
156
|
122.4(60前+ 62.4后)
|
141(64前+52中+25后)
|
|
标称工作压力/Mpa
|
―
|
70
|
70
|
|
氢气质量分数/ wt%
|
~4.7
|
~5.7
|
~6.0
|
|
储氢量/kg
|
―
|
~4.6
|
~5.6
|
|
辅助动力电池
|
类型
|
镍氢电池
|
锂离子电池
|
|
模组形式、数量
|
1p6s、34组
|
1p1s,84组
|
||
单体个数/个
|
204(34×6)
|
84
|
||
单体平均电压平台/V
|
1.2
|
3.7
|
||
单体容量/Ah
|
6.5
|
4.0
|
||
系统电压平台/V ⑤
|
244.8
|
310.8
|
||
系统标称能量/kWh ⑥
|
1.59
|
1.24
|
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