Article(id=1154021841619374432, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1154021839199260977, articleNumber=null, orderNo=null, doi=10.19562/j.chinasae.qcgc.2024.11.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1711641600000, receivedDateStr=2024-03-29, revisedDate=1715356800000, revisedDateStr=2024-05-11, acceptedDate=null, acceptedDateStr=null, onlineDate=1753069847731, onlineDateStr=2025-07-21, pubDate=1732464000000, pubDateStr=2024-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753069847731, onlineIssueDateStr=2025-07-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753069847731, creator=13701087609, updateTime=1753069847731, updator=13701087609, issue=Issue{id=1154021839199260977, tenantId=1146029695717560320, journalId=1146120084050784272, year='2024', volume='46', issue='11', pageStart='1937', pageEnd='2141', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=0, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753069847153, creator=13701087609, updateTime=1753074308668, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1154040552191418639, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1154021839199260977, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1154040552191418640, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1154021839199260977, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2068, endPage=2075, ext={EN=ArticleExt(id=1154021842051387760, articleId=1154021841619374432, tenantId=1146029695717560320, journalId=1146120084050784272, language=EN, title=Design and Validation of a Carbon-Nanotube Film Heating Panel for LiFePO4 Battery, columnId=1149809889280750125, journalTitle=Automotive Engineering, columnName=Selected Papers, runingTitle=null, highlight=null, articleAbstract=

For the problem of performance degradation in LiFePO4 batteries under low-temperature conditions,a lightweight,high-strength,low-voltage,safe,and energy-efficient Fiber Carbon-nanotube film Laminated heating structure for LiFePO4 battery is designed and developed,and experimental validation is conducted. The thermocompression technology is used to achieve the integrated molding of the Carbon-nanotube film and composite laminated structure. The experiment verifies the uniformity,stability and thermal fatigue resistance of a FCL (Fiber Carbon-nanotube film Laminated composite) heater. Furthermore,heating experiments on LiFePO4 batteries in low-temperature environments are carried out,which is compared with the traditional Positive Temperature Coefficient (PTC) heater. The results show that compared to the traditional PTC heater,the FCL heater exhibits a 59% reduction in weight,a 3.5% decrease in energy consumption,a 26% improvement in temperature rise efficiency,and a 195% increase in power-to-weight ratio.

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针对磷酸铁锂电池低温环境下的性能衰减问题,设计开发了一种轻质高强、低压安全、高效节能的磷酸铁锂电池抗低温纤维碳纳米管膜加热功能结构并开展了实验验证。采用热压工艺实现了碳纳米管薄膜与复合材料层合结构的一体化成形。实验验证了FCL(fiber carbon-nanotube film laminated composite)加热器良好的温度均匀性、稳定性以及抗热疲劳性能。开展了低温环境下磷酸铁锂电池加热实验,并与传统的PTC(positive temperature coefficient)加热器进行了对比分析,结果表明:相较于传统的PTC加热器,FCL加热器质量减轻了59%,能量消耗降低了3.5%,温升效率提高了26%,功率质量比提升了195%。

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谢宗蕻,教授,博士,E-mail:
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序号 材料 参数
1 玻璃纤维织物/环氧树脂预浸料

拉伸强度:480 MPa

拉伸模量:28 GPa

弯曲强度:480 MPa

弯曲模量:14 MPa

厚度:0.20 mm

2 碳纳米管加热薄膜

加热温度范围:0~200 ℃

厚度:0.10 mm

3 碳纳米管导热薄膜

导热系数≥750 W·m-1·K-1

厚度:0.15 mm

), ArticleFig(id=1170312728771044231, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1154021841619374432, language=CN, label=表 1, caption=

抗低温加热功能结构材料参数

, figureFileSmall=null, figureFileBig=null, tableContent=
序号 材料 参数
1 玻璃纤维织物/环氧树脂预浸料

拉伸强度:480 MPa

拉伸模量:28 GPa

弯曲强度:480 MPa

弯曲模量:14 MPa

厚度:0.20 mm

2 碳纳米管加热薄膜

加热温度范围:0~200 ℃

厚度:0.10 mm

3 碳纳米管导热薄膜

导热系数≥750 W·m-1·K-1

厚度:0.15 mm

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对比内容 PTC加热器 FCL加热器 变化比例/%
供电电压/V 93 32 -65.6
平均功率/W 140.5 170.6 24.4
消耗能量/(W·h) 153.8 148.5 -3.5
温升效率/(℃·h-1 16.1 20.3 26.0
质量/g 226.9 93.2 -59.0
功率质量比/(W·g-1 0.62 1.83 195.0
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PTC加热器与FCL加热器指标对比

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对比内容 PTC加热器 FCL加热器 变化比例/%
供电电压/V 93 32 -65.6
平均功率/W 140.5 170.6 24.4
消耗能量/(W·h) 153.8 148.5 -3.5
温升效率/(℃·h-1 16.1 20.3 26.0
质量/g 226.9 93.2 -59.0
功率质量比/(W·g-1 0.62 1.83 195.0
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唐超 , 岑志雄 , 殷正翰 , 王海瑞 , 袁培毓 , 谢宗蕻
汽车工程 | 精选论文 2024,46(11): 2068-2075
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汽车工程 | 精选论文 2024, 46(11): 2068-2075
磷酸铁锂电池碳纳米管膜加热结构设计及验证*
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唐超, 岑志雄, 殷正翰, 王海瑞, 袁培毓, 谢宗蕻
作者信息
  • 中山大学深圳航空航天学院,深圳 518107

通讯作者:

谢宗蕻,教授,博士,E-mail:
Design and Validation of a Carbon-Nanotube Film Heating Panel for LiFePO4 Battery
Chao Tang, Zhixiong Cen, Zhenghan Yin, Hairui Wang, Peiyu Yuan, Zonghong Xie
Affiliations
  • School of Aeronautics and Astronautics,Shenzhen Campus of Sun Yat-sen University,Shenzhen 518107
出版时间: 2024-11-25 doi: 10.19562/j.chinasae.qcgc.2024.11.013
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针对磷酸铁锂电池低温环境下的性能衰减问题,设计开发了一种轻质高强、低压安全、高效节能的磷酸铁锂电池抗低温纤维碳纳米管膜加热功能结构并开展了实验验证。采用热压工艺实现了碳纳米管薄膜与复合材料层合结构的一体化成形。实验验证了FCL(fiber carbon-nanotube film laminated composite)加热器良好的温度均匀性、稳定性以及抗热疲劳性能。开展了低温环境下磷酸铁锂电池加热实验,并与传统的PTC(positive temperature coefficient)加热器进行了对比分析,结果表明:相较于传统的PTC加热器,FCL加热器质量减轻了59%,能量消耗降低了3.5%,温升效率提高了26%,功率质量比提升了195%。

磷酸铁锂电池  /  纤维碳纳米管膜复合材料  /  抗低温性能  /  功能结构

For the problem of performance degradation in LiFePO4 batteries under low-temperature conditions,a lightweight,high-strength,low-voltage,safe,and energy-efficient Fiber Carbon-nanotube film Laminated heating structure for LiFePO4 battery is designed and developed,and experimental validation is conducted. The thermocompression technology is used to achieve the integrated molding of the Carbon-nanotube film and composite laminated structure. The experiment verifies the uniformity,stability and thermal fatigue resistance of a FCL (Fiber Carbon-nanotube film Laminated composite) heater. Furthermore,heating experiments on LiFePO4 batteries in low-temperature environments are carried out,which is compared with the traditional Positive Temperature Coefficient (PTC) heater. The results show that compared to the traditional PTC heater,the FCL heater exhibits a 59% reduction in weight,a 3.5% decrease in energy consumption,a 26% improvement in temperature rise efficiency,and a 195% increase in power-to-weight ratio.

LiFePO4 battery  /  fiber carbon-nanotube film laminated composite  /  low temperature resistance  /  functional structure
唐超, 岑志雄, 殷正翰, 王海瑞, 袁培毓, 谢宗蕻. 磷酸铁锂电池碳纳米管膜加热结构设计及验证*. 汽车工程, 2024 , 46 (11) : 2068 -2075 . DOI: 10.19562/j.chinasae.qcgc.2024.11.013
Chao Tang, Zhixiong Cen, Zhenghan Yin, Hairui Wang, Peiyu Yuan, Zonghong Xie. Design and Validation of a Carbon-Nanotube Film Heating Panel for LiFePO4 Battery[J]. Automotive Engineering, 2024 , 46 (11) : 2068 -2075 . DOI: 10.19562/j.chinasae.qcgc.2024.11.013
为适应汽车行业节能环保的趋势,电动汽车逐渐成为行业发展的主流[1]。磷酸铁锂电池由于其高安全性和长循环寿命的优势在新能源汽车和储能领域应用广泛[2]。但是,磷酸铁锂电池的性能受环境温度影响显著,低温下电解质黏度增加,锂离子扩散速率降低,导致电池内阻增大,容量降低,放电电压下降[3]。在-10 ℃时,容量降低10%左右[4],-20 ℃时放电容量骤降,仅为常温环境下比容量的30%左右,放电电压也降低15%左右[5]。而且在低温环境下锂离子电池充电困难,负极表面易析出锂金属[6],锂枝晶的生长容易刺穿电池隔膜,造成电路短接,导致电池安全性降低[7]。因此,为保证电动汽车在寒冷地区的性能和安全,须采用动力电池低温加热方法。
常用的动力电池低温加热方法主要分为内部加热法和外部加热法两大类[8]。内部加热法是利用电池内阻产热对电池进行加热[9],电池受热均匀,加热速率较快,但是加热过程须对电池进行充电和放电,会导致电池性能衰减,且存在安全隐患[10-12]。外部加热法是利用电池模组以外的热源,如空气加热[13-15]、液体加热[16]以及电热元件加热[17]等方法,以热对流或热传导的方式实现电池升温。空气和液体加热方式加热均匀性较高,但是加热路径长,能量消耗高,对电池箱要求也较高,可靠性难以保证[18]。与其他外部加热方法相比,电热元件加热通过加热器和电池直接接触,减少了热传递路径,降低了能量损耗。3种不同电热加热元件的对比图如图1所示,常用的电热元件以金属元件和PTC(positive temperature coefficient)发热体为主[19-21](见图1(a)和图1(b)),存在质量增加、损伤容限低、加热效率较低等缺陷,无法满足新一代磷酸铁锂动力电池加热功能结构的需求。而碳纳米管薄膜是一种高导电性和高导热性的纳米发热材料(见图1(c)),可用作加热元件,具备质量轻,热响应迅速,加热均匀稳定,损伤容限高,结构一体化程度和可靠性高等优点[22-23]。Kostara等[24]利用碳纳米薄膜的热响应迅速的特性,在40 s内从玻璃基板上快速去除3 mm厚的冰层。叶璐等[25]将碳纳米管膜用于树脂基复合材料电热固化成形。Janas等[26]基于碳纳米管薄膜开发了一种加热组件,经测试该组件加热性能优异,热响应迅速并且节能。
因此,本文将基于碳纳米管薄膜加热元件制备一种轻质高强、低压安全、高效节能的磷酸铁锂电池抗低温纤维碳纳米层合复合材料加热功能结构。基于该功能结构进行加热是一种解决磷酸铁锂电池在低温环境下性能衰减问题的高效安全的方法。本研究将采用热压工艺制备抗低温加热功能结构;通过实验验证该加热功能结构表面温度的均匀性、稳定性以及抗热疲劳性能;开展低温环境下磷酸铁锂电池加热实验,并与传统的PTC加热器实验结果进行对比分析。
根据磷酸铁锂电池PTC加热器的使用效果,确定新型电池加热功能结构的设计指标:(1) 电池加热功能结构的功率 140   W;(2)使-15 ℃状态下的锂离子电池模组(10组电池)升温至0 ℃的时间 1   h。依据材料特征,将研制的新型电池加热功能结构命名为磷酸铁锂电池抗低温纤维碳纳米层合复合材料(fiber carbon-nanotube film laminated composite,FCL)加热功能结构(简称FCL加热器)。如图2所示,FCL加热器包含保护层、均热层、绝缘层、加热层以及支撑层。保护层、上绝缘层、下绝缘层为1层玻璃纤维织物/环氧树脂复合材料,具备优异的绝缘性和相容性;支撑层为5层玻璃纤维织物/环氧树脂复合材料,保证功能结构的强度和刚度;均热层为高热导率的碳纳米管导热薄膜,提高热传导效率;加热层为高电热转化效率的碳纳米管加热薄膜,确保热响应迅速,加热性能稳定均匀。材料的具体参数如表 1所示。
FCL加热器结构尺寸参考某车载磷酸铁锂电池PTC加热器进行设计,其中,玻璃纤维织物/环氧树脂复合材料大小为585 mm×80 mm,均热层和加热层大小为500 mm×72 mm。加热层设计尺寸如图3所示。
以方阻表征薄膜的阻抗性能,测量方法通常采用等距四探针法,如图4所示,其原理是电流流经两根接触薄膜表面的探针导入材料,另外两根探针采集薄膜表面的电势差,经式(1)计算出电阻率[27]
ρ = π l n 2 · Δ U 23 I · d
式中: ρ为材料的电阻率; d为薄膜的厚度; Δ U 23为薄膜表面电势差; I为电流。
式(2)获取方阻值后可计算获得薄膜的电阻。薄膜的方阻 R s和电阻 R l
R s = ρ d
R l = R s · a b
式中 a b分别为薄膜的宽度和长度。薄膜的功率 P
P = U 2 R l = U 2 R s · b a
式中 U为输入电压。由式(4)可知,可以通过调节方阻、电压值以及调整碳纳米管薄膜尺寸来控制加热区域的功率。
为验证碳纳米管薄膜加热元件电阻率的稳定性,须在FCL加热器成形前,将碳纳米加热膜封装成加热组件并进行电热性能测试。加热组件包含上、下绝缘层和加热层,依据热压工艺制造加热组件并进行测试。
实验在常温环境下进行。如图5所示,通电加热初始时,加热组件功率为66 W,104 s后温度上升至67 ℃,功率为67 W,直至实验结束,功率保持不变。由此可知,碳纳米管薄膜加热元件电阻率比较稳定,受温度影响较小。
采用热压工艺制造FCL加热器。如图6(a)所示,裁剪好合适大小的玻璃纤维织物/环氧树脂预浸料、导热薄膜以及加热薄膜,按照结构设计图依次铺贴平整。采用脱模剂清刷钢板,待钢板表面干燥后,铺设隔离膜、透气毡、脱模布以及铺贴好的加热功能结构。再通过真空袋进行密封后抽取真空,真空压力≥80 kPa(参见图6(b))。按照固化工艺曲线(参见图6(c)),在120 ℃温度条件下保温90 min。冷却至60 ℃以下,脱模并检查FCL加热器成形质量(参见图6(d)):厚度为1.4 mm,质量为93.2 g,相对于PTC加热器质量(实测数据:226.9 g)降低了59%。
为验证纤维碳纳米管复合材料层合加热器的温度均匀性、稳定性以及抗疲劳性能,开展常温、低温下FCL加热器温升测试以及加热器热循环测试,对比常温、低温情况下加热器表面温度随时间的变化过程以及热循环过程中加热器内阻的变化过程。
选用的磷酸铁锂动力电池模组额定电压为32 V。因此,测试电压为32 V,环境温度为25 ℃,通电加热至95 ℃后停止加热。在FCL加热器上等间距布置3个热电偶,结合热成像仪记录温度变化情况。
FCL加热器表面热成像图及温升曲线如图7图8所示。初始通电加热至30 ℃后,加热器底部出现极值点,随温度上升至50 ℃后,温度逐渐分布均匀,最大温差维持在3 ℃左右。60 ℃以后,以中心位置形成极值区域,并逐步向四周扩散,最终占据FCL加热器表面面积五分之四区域。由图8可知,3条曲线在升温过程中基本重合,达到最高温度时,中心温度稍微高于两侧温度,最大温差为4 ℃左右,与热成像仪记录现象相符。由此可知:FCL加热器升温过程中加热区域最大温差不超过5 ℃,具有良好的加热温度均匀性。
图9为常温环境和低温环境下FCL加热器典型温升曲线图。观察可知,在常温空载情况下,20 s从25.9升温至56.5 ℃,40 s从25.9升温至82.8 ℃,区间分别为30.6和56.9 ℃。低温空载情况下,20 s从-17.0升温至15.1 ℃,40 s从-17.0升温至42.9 ℃,80 s从-17.0升温至80.3 ℃,区间分别为32.1、59.9和97.3 ℃。比较常温环境和低温环境下FCL加热器的温升区间,温差为2~3 ℃,在常温和低温环境下加热器的升温速率分别为1.5和1.6 ℃/s。因此,FCL加热器加热性能稳定,受环境温度影响较小。
为考核长时间高低温循环载荷条件下FCL加热器的工作性能,开展FCL加热器热循环测试。图10为加热器热循环温度曲线,循环的最高温度Tmax为50 ℃,最低温度Tmin为-10 ℃,测试环境温度为-20 ℃。开启加热器达到Tmax后降温至Tmin,为1次温度循环,累计进行1 800次温度循环。并分别在实验前及实验进行至第10、20、50、100、200、300、500、1 000、1 500和1 800次循环时测量试件内阻,并对FCL加热器外观进行检查,拍照记录试件状态,确认试件未出现分层、开裂以及起泡等现象后继续进行测试,直到完成1 800次温度循环测试。
FCL加热器热循环测试结果如图11所示。结果显示:经相应的实验次数后,FCL加热器未出现分层、开裂以及起泡等现象;试件初始内阻值为4.95 Ω,对应输入电压32 V时功率为206.9 W,经300次循环,内阻值逐步递增至5.31 Ω,经1 000次循环后,内阻值为5.94 Ω,相对初始值增加了20.0%,加热功率衰减了16.7%。经1 800次循环,内阻值为6.08 Ω,相对1 000次循环,内阻值增加了2.4%,功率下降2%。由此可知,FCL加热器具备良好的抗热疲劳性能。
磷酸铁锂电池加热实验台主要由低温环境箱、磷酸铁锂电池模组、加热器、电源系统、功率测量系统及温度测量系统组成。如图12所示,加热实验在低温环境箱内进行,通过压缩机制冷调节环境温度。实验选用的磷酸铁锂电池为93 V、150 A·h某车动力电池系统总成中的电池模组(见图13(a)),总计10组电池,每组电池额定电压为3.2 V。为模拟电池在电池舱中的环境,在电池四周贴上一层保温海绵。加热器放置在磷酸铁锂电池模组的底部,对电池进行加热。其中,FCL加热器外侧加入70 ℃-KSD9700温控开关,实现脉冲式加热,有效保证磷酸铁锂电池和加热器的安全,并降低能量消耗。电源系统采用稳压直流电源CSYJ400-18,最大输出电压为400 V,最大输出电流为18 A。温度测量系统采用自研的温度测量仪,如图13(b)所示,主要是通过热电偶采集电池各个位置的温度,总共布置了18个热电偶,加热器外侧、电池左侧、内部、右侧、顶部以及底部分别等间距放置3个热电偶。功率测量系统采用炬为的DT24功率计,串联在电路中测量输出电压和输出电源,测量功率范围为0~11.4 kW,测量电流范围为0~30 A。
磷酸铁锂电池加热实验在-20 ℃低温环境箱中进行。通过给FCL加热器施加32 V的电压,开始加热实验,记录实验过程中加热器能量消耗情况及磷酸铁锂电池模组温度变化情况。
FCL加热器功率变化曲线如图14所示,FCL加热器的瞬时功率为206 W,平均功率为170.6 W。FCL加热器内外侧及电池温度变化如图15所示,FCL加热器启动4 min后,加热器外侧温度达到70 ℃时温控开关自动打开,当温度降低至55 ℃后温控开关自动闭合,循环往复直至电池温度升到0 ℃,实验结束。由于FCL加热器内侧靠近电池,外侧接触空气,存在一定温度差。电池左侧温度和电池右侧温度升温曲线斜率一致,升温速率均为0.23 ℃/min,可见电池整体的升温是均匀的。电池顶部温度由-15升温至0 ℃需58 min。电池内部温度由-15升温至0 ℃需45 min,消耗能量128.2 W·h,约占电池模组能量的2.67%。
因此,当FCL加热器平均功率为170.6 W时,满足-20 ℃环境下的电池模组(10组电池单体)从-15升温至0 ℃的时间 1   h的设计要求。
在相同电压输入的情况下,FCL加热器损伤前后对比热成像图如图16所示。由图16(a)可知,FCL加热器未损伤时,加热器表面温度分布比较均匀,最大温差为1.8 ℃。人工制备通孔损伤后,如图16(b)所示,加热器温度布局发生改变,靠近通孔损伤处温度比未损伤前降低约1.9 ℃,加热器表面温度分布比较均匀,最大温差为3.1 ℃。经过加热器损伤前后热成像图对比可知,FCL加热器损伤容限高,加热元件受损后对加热器温度均匀性和稳定性影响不大。而电阻丝加热器和PTC加热器的加热元件受损会导致电路断路,影响加热器的正常使用。
施加额定电压93 V给PTC加热器,在-20 ℃环境下对磷酸铁锂电池模组进行加热。由图17可知,PTC加热器启动5 min后,功率逐渐趋于稳定,平均功率为140.5 W。FCL加热器与PTC加热器的加热效果对比情况如图18所示,在低温(-20 ℃)环境下,将电池内部温度从-15提升至0 ℃,FCL加热器需45 min,消耗能量128.2 W·h,PTC加热器需58 min,消耗能量134.5 W·h。FCL加热器内侧最高温度为45 ℃,PTC加热器内侧最高温度为50 ℃。
表2可知,相对于PTC加热器,FCL加热器功率提升21.4%,能量消耗降低3.5%,温升效率提升26.0%,质量减轻59.0%,功率质量比提升了195.0%。
(1)采用热压工艺实现了碳纳米加热薄膜和复合材料结构的一体化成形。厚度为1.4 mm,质量为93.2 g,与传统PTC加热器相比,FCL加热器质量降低了59%。
(2)由常温环境下FCL加热器表面温度分布均匀,拥有良好的电加热性能,升温速率为1.5 ℃/s;相同功率低温环境下FCL加热器的升温速率为1.6 ℃/s,加热性能稳定;经过高低温热循环载荷试验,验证了加热器有良好的抗热疲劳性能。
(3)与传统的磷酸铁锂电池加热功能结构相比,纤维碳纳米层合加热功能结构元件受损后能正常使用且可以保持加热温度的均匀性和稳定性。FCL加热器加热45 min可以将磷酸铁锂电池模组从-15提升至0 ℃,总计消耗能量为128.2 W·h,约占电池模组容量的2.67%。与传统的磷酸铁锂电池PTC加热器相比,FCL加热器供电电压降低65.6%,功率提升21.4%,能量消耗降低3.5%,温升效率提高26.0%,功率质量比提升195.0%。
(4) 本文针对磷酸铁锂电池抗低温纤维碳纳米层合复合材料加热功能结构的验证实验中未考虑电池充放电实验。因此,在后续工作中,将开展磷酸铁锂电池加热前和加热后的充放电实验,对比测试结果,研究FCL加热器加热效果对磷酸铁锂电池充放电性能的影响。
综上,基于碳纳米管薄膜加热元件的FCL加热器实现了对磷酸铁锂电池快速且均匀的加热,提升了电池在低温环境下的内部温度,从而增强电池的充放电能力,可替代传统的PTC加热器。在未来应用中FCL加热器还将面对市场接受度与现有技术兼容性等一系列挑战。
  • *深圳市科技计划(JCYJ20220530145203007)
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2024年第46卷第11期
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doi: 10.19562/j.chinasae.qcgc.2024.11.013
  • 接收时间:2024-03-29
  • 首发时间:2025-07-21
  • 出版时间:2024-11-25
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  • 收稿日期:2024-03-29
  • 修回日期:2024-05-11
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*深圳市科技计划(JCYJ20220530145203007)
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    中山大学深圳航空航天学院,深圳 518107

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谢宗蕻,教授,博士,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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