Name: synthesis of ionic liquid based electrolytes, assembly of li-ion batteries, and measurements of performance at high temperature
Uploaded: 2016-12-20T13:00:00
Description: Watch this Scientific Journal Video about Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature at JoVE.com

This article was supported in part by BU and by the Advanced Energy Consortium:

Klorür (Cl) ve Bis (triflorometan) sulfonimide (TFSI) Anyonların ile eşleştirilmiş Mono ve Di-fosfonyum İyonik Sıvıların 1.Synthesis Not: Üç heksil ve fosfonyum katyon çevreleyen bir desil alkil zincirine sahip mono- fosfonyum iyonik sıvı prosedürü tarif edilmiştir ve bu, iyonik sıvı mono- HexC10Cl olarak kısaltılmıştır. Aynı prosedür, yüksek verimde, di-fosfonyum iyonik sıvıyı elde etmek için 1,10-dichlorodecane kullanılarak tekrarlandı ve bu iyonik sıvı, di...

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yanmaz ve yüksek sıcaklık fonksiyonel Li-ion pilleri geliştirmek için bizim yaklaşımımız prototip sikke hücrelerinde yeni iyonik sıvı elektrolit sentezini ve bunların daha sonraki değerlendirmesini kapsar. Spesifik olarak, mono- HexC10TFSI ve di-HexC10TFSI göre elektrolitler Li metali anot ve LiCoO 2 katot sahip olan bir madeni para hücrede test edilmiştir. Bu yaklaşım içinde kritik adımlar şunlardır: 1) tasarım özellikleri bir dizi göre kurşun elektrolit belirlenmesi; 2) kuruluk ko...

Li-ion piller elektrik enerjisi ve kimyasal enerji arasındaki enerji dönüşümü ve depolamak için ve talep üzerine ve on-the-go enerji sağlamak için uygun bir yol sağlar cihazlardır. Bugün, Li-ion piller nedeniyle yüksek enerji yoğunluğu ve yeniden yüklenebilirliğe taşınabilir elektronik piyasaya hakim ve bu aşağı delik delme ve otomotiv gibi büyük ölçekli ve özel uygulamalar için ilgi çekicidir. Katot, anot, ayırıcı ve elektroliti: 1-5 Piller dört ana bileşenden oluşur. iki elektrod kimyası pilin teorik enerji yoğunluğunu belirler birlikte, güvenlik ve çalışma sıcaklığı esas olarak elektrolit malzeme ile sınırlıdır. 6-9 karbonat bazlı organik çözücü elektrolitler (örneğin, dimetil karbonat (DMC) ve etilen karbonat (EC)) yaygın olarak nedeniyle düşük viskoziteli ve yüksek iletkenliği ve yüksek lityum tuzu çözünürlüğüne lityum iyon pil kullanılmaktadır. Ayrıca, bazı combinakarbonat solventler (DMC / EC) leri de böylece elektrolit ve elektrot ve uzayan pil ömrü arasında bozunma reaksiyonları engelleyerek, istikrarlı bir katı elektrolit arabirimini (SEI) oluştururlar. Ancak, karbonat çözücüler kısa devre olduğunda potansiyel olarak ciddi güvenlik sorunları ile, 55 ° C&#39;nin altında Li-ion pillerin çalışma sıcaklığını sınırlayarak, düşük kaynama noktaları ve flaş noktalarından muzdarip. 10,11 İyonik sıvılar, 100 ° C&#39;nin altında erime sıcaklıklarına sahip tuzlar sınıfıdır. Tipik inorganik tuzlar aksine 12, iyonik sıvılar, geniş bir sıvı aralığı sahiptir ve oda sıcaklığında sıvı olabilir. İyonik sıvılar gibi imidazolyum, fosfonyum, piridinyum ya da amonyum gibi bir ya da birden fazla organik katyonik merkezleri, oluşan ve metansülfonat, heksaflorofosfat, ya da halid gibi bir inorganik ya da organik anyon ile eşleştirilir. Mümkün olan katyon ve anyon kombinasyonları 13,14 çeşitliayarlanabilir özelliklere sahip bileşimlerin çok sayıda olanak vermektedir. Ek olarak, iyonik sıvılar içinde güçlü iyonik etkileşimler ihmal buhar basıncı, yanmazlık, yüksek termal ve elektrokimyasal bir sabitlik ile sonuçlanabilir. 15,16 iyonik sıvılar ile geleneksel elektrolit değiştirilmesi mevcut Li-ion piller doğasında güvenlik sorunlarını giderir, ve yüksek sıcaklık uygulamaları sağlayabilir bir çözümdür. 17-27 yüksek sıcaklık uygulamaları için iyonik sıvı içeren lityum iyon pilleri oluşturmak için kullanılan genel sentetik ve malzeme işleme yöntemlerini göstermek için, sentezini, termal özellikleri ve ile eşleştirilmiş mono ve di-fosfonyum iyonik sıvıların elektrokimyasal karakterizasyonu açıklar ya klorür (CI) veya bis (triflorometan) sulfonimide (TDI) anyonudur. lityum bis (triflorometan) sulfonimide farklı konsantrasyonları (LiTFSI) daha sonra fosfonyum iyonik Sıvı sabun ilave edilirkimlikler elektrolitleri vermek. Klorür analogları ile karşılaştırıldığında ilave LiTFSI fosfonyum TDI elektrolit performansına bağlı olarak, bir madeni para büyüklüğünde Li metali anot ve LiCoO 2 katot ile birlikte ya da mono-ya da di-fosfonyum TDI elektrolitler ile inşa edilmiştir. Son olarak, pil performansını iki farklı madeni para hücre pil için 100 ° C&#39;de değerlendirilir. Bu deneyler elde detaylı prosedürler, yürütme zorluklar ve anlayışlar aşağıda açıklanmıştır.

<table border="0" cellpadding="0" cellspacing="0" width="653">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Silicone oil</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td style="width:119px;">85409</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Potassium hydroxide</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td align="right" style="width:119px;">221473</td>
			<td>Corrosive</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Rotary evaporator</td>
			<td style="width:108px;">Buchi</td>
			<td style="width:119px;">R-124</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">High-vacuum pump</td>
			<td style="width:108px;">Welch</td>
			<td align="right" style="width:119px;">8907</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Nitrogen, ultra high purity</td>
			<td style="width:108px;">Airgas</td>
			<td style="width:119px;">NI UHP300</td>
			<td>Compressed gas</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Tetrahydrofuran, stabilized with BHT</td>
			<td style="width:108px;">Pharmaco-Aaper</td>
			<td align="right" style="width:119px;">346000</td>
			<td>Flammable. Dried through column of XXX</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Dichloromethane</td>
			<td style="width:108px;">Pharmaco-Aaper</td>
			<td align="right" style="width:119px;">313000</td>
			<td>Flammable, toxic.</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Separatory funnel (1 L)</td>
			<td style="width:108px;">Fisher Scientific</td>
			<td style="width:119px;">13-678-606</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Sodium sulfate</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td align="right" style="width:119px;">239313</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Ethanol, absolute</td>
			<td style="width:108px;">Pharmaco-Aaper</td>
			<td style="width:119px;">111USP200</td>
			<td>Flammable, toxic.</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Buchner funnel</td>
			<td style="width:108px;">Fisher Scientific</td>
			<td style="width:119px;">FB-966-F</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Methanol</td>
			<td style="width:108px;">Pharmaco-Aaper</td>
			<td style="width:119px;">339000ACS</td>
			<td>Flammable, toxic.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Triethylamine (anhydrous)</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td align="right" style="width:119px;">471283</td>
			<td>Toxic, flammable, harmful to environment</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Glass syringe</td>
			<td style="width:108px;">Hamilton Company</td>
			<td style="width:119px;">1700-series</td>
			<td></td>
		</tr>
		<tr height="84">
			<td height="84" style="height:84px;width:259px;">Deuterated chloroform</td>
			<td style="width:108px;">Cambridge Isotopes Laboratories, Inc.</td>
			<td style="width:119px;">DLM-29-10</td>
			<td>Toxic</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Nuclear magnetic resonance instrument</td>
			<td style="width:108px;">Varian</td>
			<td style="width:119px;">V400</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Hydrogen</td>
			<td style="width:108px;">Airgas</td>
			<td style="width:119px;">HY HP300</td>
			<td>Highly flammable.</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Hexanes</td>
			<td style="width:108px;">Pharmaco-Aaper</td>
			<td style="width:119px;">359000ACS</td>
			<td>Toxic, flammable.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Differential scanning calorimeter</td>
			<td style="width:108px;">TA Instruments</td>
			<td style="width:119px;">Q100</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">N,N-dimethylformamide</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td align="right" style="width:119px;">227056</td>
			<td>Toxic, flammable.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">Trihexylphosphone</td>
			<td style="width:108px;">TCI America</td>
			<td style="width:119px;"></td>
			<td>Toxic, flammable.</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">1-Chlorodecane</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td style="width:119px;"></td>
			<td>Toxic, flammable.</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:259px;">Bis(trifluoromethane)sulfonimide lithium salt</td>
			<td style="width:108px;">Sigma-Aldrich</td>
			<td style="width:119px;"></td>
			<td>Hydrophilic</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:259px;">1, 10-dichlorodecane</td>
			<td style="width:108px;">Sigma-Aldrich</td>
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			<td>Toxic, flammable.</td>
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		<tr height="21">
			<td height="21" style="height:21px;">Differential scanning calorimeter (DSC)</td>
			<td style="width:108px;">TA Q100</td>
			<td style="width:119px;">TA instruments</td>
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		<tr height="21">
			<td height="21" style="height:21px;">Controlled Strain Rheometer</td>
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			<td style="width:119px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Conductivity Meter&#160;</td>
			<td style="width:108px;">Consort</td>
			<td style="width:119px;">K912</td>
			<td>4-electrode cell</td>
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		<tr height="63">
			<td height="63" style="height:63px;">Potentiostate/Galvanostat</td>
			<td style="width:108px;">Princeton Applied Research&#160;</td>
			<td style="width:119px;">VersaStat MC4&#160;</td>
			<td style="width:167px;">Electrochemical testing</td>
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			<td height="42" style="height:42px;">Separators&#160;</td>
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			<td style="width:108px;">MTI Corp.</td>
			<td style="width:119px;">EQ-CR2032-CASE</td>
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		<tr height="25">
			<td height="25" style="height:25px;">LiCoO2 electrode&#160;</td>
			<td style="width:108px;">MTI Corp.</td>
			<td style="width:119px;">EQ-CR2032</td>
			<td style="width:167px;">Cathode material</td>
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		<tr height="21">
			<td height="21" style="height:21px;">lithium metal&#160;</td>
			<td style="width:108px;">Alfa Aesar</td>
			<td align="right" style="width:119px;">10769</td>
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			<td height="42" style="height:42px;width:259px;">Stainless Steel Spacer</td>
			<td style="width:108px;">MTI Corp.</td>
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			<td style="width:108px;">MTI Corp.</td>
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			<td style="width:108px;">MTI Corp.</td>
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			<td style="width:167px;">Water free, oxygen free operation</td>
		</tr>
	</tbody>
</table>

synthesis of ionic liquid based electrolytes, assembly of li-ion batteries, and measurements of performance at high temperature

Geleneksel elektrolit kimyasal dengesizliği gibi Li-ion piller gibi yaygın olarak kullanılan enerji depolama aygıtları bir güvenlik sorunu olmaya devam etmektedir. yüksek sıcaklıklarda çalışan cihazlarda kullanılmak üzere Li-ion piller, termal kararlı ve yanıcı olmayan elektrolitler gerektirir. , Termal olarak kararlı eriyik tuzları, uçucu olmayan, alev almaz iyonik sıvılar (ILS) şu anda, günümüzde kullanılan yanıcı ve düşük kaynama noktalı bir organik çözücü elektrolit için ideal bir yedek bulunmaktadır. 1) klorür veya bis (triflorometan) sulfonimide (TDI) anyonlar ile eşleştirilmiş mono- ve di-fosfonyum iyonik sıvılar sentezleyebilir: Bu tarifnamede prosedürleri açıklamak 2) diferansiyel tarama kalorimetresi (DSC), termal gravimetrik analiz (TGA), bu iyonik sıvılar termal özellikleri ve stabilite ölçümü; 3) Dönüşümlü voltametri (CV) iyonik sıvıların elektrokimyasal özelliklerini ölçmek; 4) lityum bis (triflorometan) sülfonamid ihtiva eden elektrolit hazırlanması; 5) co ölçmekSıcaklığın bir fonksiyonu olarak elektrolit nductivity; 6) Li metali anot ve katot LiCoO 2 ile birlikte elektrolitlerin iki ile Düğme pili monte; ve 7), 100 ° C &#39;de akü performansını değerlendirmek. Biz ayrıca bu deneyler elde yürütme zorlukların yanı sıra anlayışlar açıklar.

İyonik sıvılar, mono- HexC10Cl ve di-HexC10Cl, bir nükleofilik tepkime yoluyla hazırlanmıştır ve daha sonra halid değişim reaksiyonu mono- HexC10TFSI ve di-HexC10TFSI iyonik sıvılar, sırasıyla (Şekil 1A) elde edilmiştir. 14. Dört iyonik sıvılar renksiz hafif viskoz sıvıları (Şekil 1B) idi. Mono- HexC10TFSI iyonik sıvı bir Örnek 1 &#39;H NMR Şekil 1C&#39;de gösterildiği gibi, ve kütle sp...

Watch this Scientific Journal Video about Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature at JoVE.com

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Here, we describe protocols to prepare phosphonium-based ionic liquid and lithium bis(trifluoromethane)sulfonimide salt electrolytes, and assemble a non-flammable and high temperature functioning lithium-ion coin cell battery.

İyonik Sıvı Bazlı Elektrolitlerin Sentezi Li-ion Piller, Meclis ve Yüksek Sıcaklığında Performans Ölçümleri

The chemical instability of the traditional electrolyte remains a safety issue in widely used energy storage devices such as Li-ion batteries. Li-ion ...

Research

JoVE Journal

Engineering

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Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment

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Imaging morphological changes that occur during the lifetime of rechargeable batteries is necessary to understand how these devices fail. Since the advent ...

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Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

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