MX390398B - Mitigacion de reacciones parasitas dentro de baterias de flujo. - Google Patents

Mitigacion de reacciones parasitas dentro de baterias de flujo.

Info

Publication number
MX390398B
MX390398B MX2017013227A MX2017013227A MX390398B MX 390398 B MX390398 B MX 390398B MX 2017013227 A MX2017013227 A MX 2017013227A MX 2017013227 A MX2017013227 A MX 2017013227A MX 390398 B MX390398 B MX 390398B
Authority
MX
Mexico
Prior art keywords
electrode
cell
bipolar plate
parasitic reactions
flow batteries
Prior art date
Application number
MX2017013227A
Other languages
English (en)
Other versions
MX2017013227A (es
Inventor
Adam Morris-Cohen
Arthur J Esswein
John Goeltz
Srivatsava Puranam
Original Assignee
Lockheed Martin Energy Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lockheed Martin Energy Llc filed Critical Lockheed Martin Energy Llc
Publication of MX2017013227A publication Critical patent/MX2017013227A/es
Publication of MX390398B publication Critical patent/MX390398B/es

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/96—Carbon-based electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H01M8/184—Regeneration by electrochemical means
    • H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Composite Materials (AREA)
  • Inert Electrodes (AREA)
  • Secondary Cells (AREA)
  • Fuel Cell (AREA)

Abstract

Las reacciones electroquímicas productivas pueden ocurrir a menudo de manera más efectiva en proximidad a un separador que divide una celda electroquímica en dos diferentes semi-celdas. Las reacciones parásitas pueden ocurrir a menudo en ubicaciones más separadas del separador. Las reacciones parásitas son generalmente indeseables en baterías de flujo y otros sistemas electroquímicos, ya que pueden impactar el rendimiento que opera. Las baterías de flujo que tienen una incidencia disminuida de reacciones parásitas pueden incluir, una primera semi-celda que contiene un primer electrodo, una segunda semi-celda que contiene un segundo electrodo, un separador dispuesto entre la primera semi-celda y la segunda semi-celda y que hace contacto con el primer y segundo electrodos, una primera placa bipolar que hace contacto con el primer electrodo, y una segunda placa bipolar que hace contacto con el segundo electrodo, en donde una porción del primer electrodo o la primera placa bipolar contiene un material dieléctrico. El primer electrodo y la primera placa bipolar aún definen una trayectoria eléctricamente conductora contigua cuando contienen el material dieléctrico.
MX2017013227A 2015-04-15 2016-04-08 Mitigacion de reacciones parasitas dentro de baterias de flujo. MX390398B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562147702P 2015-04-15 2015-04-15
US15/090,506 US10418647B2 (en) 2015-04-15 2016-04-04 Mitigation of parasitic reactions within flow batteries
PCT/US2016/026803 WO2016168087A1 (en) 2015-04-15 2016-04-08 Mitigation of parasitic reactions within flow batteries

Publications (2)

Publication Number Publication Date
MX2017013227A MX2017013227A (es) 2018-02-23
MX390398B true MX390398B (es) 2025-03-20

Family

ID=57127297

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017013227A MX390398B (es) 2015-04-15 2016-04-08 Mitigacion de reacciones parasitas dentro de baterias de flujo.

Country Status (8)

Country Link
US (1) US10418647B2 (es)
EP (1) EP3284132A4 (es)
JP (1) JP6748109B2 (es)
KR (1) KR102560077B1 (es)
CN (1) CN107534176B (es)
CA (1) CA2981758A1 (es)
MX (1) MX390398B (es)
WO (1) WO2016168087A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180042852A (ko) 2015-08-19 2018-04-26 록히드 마틴 에너지, 엘엘씨 플로우 배터리 내의 고형물 저감 방법
US10381674B2 (en) 2016-04-07 2019-08-13 Lockheed Martin Energy, Llc High-throughput manufacturing processes for making electrochemical unit cells and electrochemical unit cells produced using the same
US10147957B2 (en) 2016-04-07 2018-12-04 Lockheed Martin Energy, Llc Electrochemical cells having designed flow fields and methods for producing the same
US10109879B2 (en) 2016-05-27 2018-10-23 Lockheed Martin Energy, Llc Flow batteries having an electrode with a density gradient and methods for production and use thereof
US10403911B2 (en) 2016-10-07 2019-09-03 Lockheed Martin Energy, Llc Flow batteries having an interfacially bonded bipolar plate-electrode assembly and methods for production and use thereof
US10573899B2 (en) 2016-10-18 2020-02-25 Lockheed Martin Energy, Llc Flow batteries having an electrode with differing hydrophilicity on opposing faces and methods for production and use thereof
US10581104B2 (en) 2017-03-24 2020-03-03 Lockheed Martin Energy, Llc Flow batteries having a pressure-balanced electrochemical cell stack and associated methods
GB201801328D0 (en) * 2018-01-26 2018-03-14 Ucl Business Plc Flow batteries
IT201800004325A1 (it) * 2018-04-09 2019-10-09 Batteria a flusso
CN108832164A (zh) * 2018-05-28 2018-11-16 华中科技大学 一种含复合添加剂的铅液流电池电解液
GB2610372A (en) 2021-07-26 2023-03-08 Invinity Energy Systems Ireland Ltd Bipolar plate
AU2022387093A1 (en) * 2021-11-10 2024-04-04 University Of Pittsburgh - Of The Commonwealth System Of Higher Education Measuring electro-chemical properties of flowable materials
EP4523270A4 (en) 2022-05-09 2026-04-22 Lockheed Martin Energy Llc CIRCULATING BATTERY INCLUDING A DYNAMIC FLUID NETWORK

Family Cites Families (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779813A (en) 1972-08-21 1973-12-18 Occidental Energy Dev Co Manifold system for electrical energy storage systems
US4075401A (en) 1975-12-27 1978-02-21 Miyagawa Kasei Industry Co., Ltd. Gas-discharging passage of storage battery and molding method thereof
US4532193A (en) 1977-11-18 1985-07-30 Polaroid Corporation Vented frame for laminar batteries and methods of making the same
US4735872A (en) 1986-11-18 1988-04-05 The United States Of America As Represented By The United States Department Of Energy Electrochemical system including lamella settler crystallizer
US4948681A (en) 1988-05-02 1990-08-14 Globe-Union Inc. Terminal electrode
US4902589A (en) 1988-06-08 1990-02-20 Moli Energy Limited Electrochemical cells, electrodes and methods of manufacture
US5188911A (en) 1991-02-25 1993-02-23 Magnavox Electronic Systems Company Tapered manifold for batteries requiring forced electrolyte flow
CN1086929A (zh) * 1992-09-04 1994-05-18 单一检索有限公司 挠性塑料电极及其制造方法
US5665212A (en) 1992-09-04 1997-09-09 Unisearch Limited Acn 000 263 025 Flexible, conducting plastic electrode and process for its preparation
JPH06290795A (ja) 1993-03-31 1994-10-18 Mitsubishi Heavy Ind Ltd 燃料電池用セパレータ
US5618641A (en) 1993-12-03 1997-04-08 Bipolar Power Corporation Bipolar battery construction
JP2973894B2 (ja) 1995-05-09 1999-11-08 松下電器産業株式会社 円筒型電池
JPH11162496A (ja) * 1997-11-25 1999-06-18 Sumitomo Electric Ind Ltd カーボンフェルト双極板とその形成方法
US6685809B1 (en) 1999-02-04 2004-02-03 Ut-Battelle, Llc Methods for forming small-volume electrical contacts and material manipulations with fluidic microchannels
US6030423A (en) 1998-02-12 2000-02-29 Micron Technology, Inc. Thin profile battery bonding method and method of conductively interconnecting electronic components
WO2000016418A1 (en) 1998-09-11 2000-03-23 Daimlerchrysler Intellectual Capital Corporation Lithium ion battery utilizing carbon foam electrodes
EP1114482B1 (en) 1999-07-01 2003-05-28 Squirrel Holdings Ltd. Bipolar electrode for electrochemical redox reactions
JP4439076B2 (ja) 2000-03-31 2010-03-24 株式会社東芝 固体高分子型燃料電池スタック
US6905797B2 (en) 2001-04-12 2005-06-14 Squirrel Holdings Ltd. Porous mat electrodes for electrochemical reactor having electrolyte solution distribution channels
WO2002086999A1 (en) 2001-04-13 2002-10-31 Powerzyme, Inc Enzymatic fuel cell
JP3897544B2 (ja) 2001-06-07 2007-03-28 住友電気工業株式会社 レドックスフロー電池用電解液およびレドックスフロー電池
WO2003012908A2 (en) 2001-07-27 2003-02-13 Massachusetts Institute Of Technology Battery structures, self-organizing structures and related methods
US6740444B2 (en) 2001-10-29 2004-05-25 Hewlett-Packard Development Company, L.P. PEM fuel cell with alternating ribbed anodes and cathodes
KR100837393B1 (ko) 2002-01-22 2008-06-12 삼성에스디아이 주식회사 탄소와 친화도가 높은 금속을 전극으로 구비하는 전자소자
GB0203508D0 (en) 2002-02-14 2002-04-03 Fuel Technology Ltd Rapid re-energising of electric power storage systems
KR20050010779A (ko) 2002-05-09 2005-01-28 더 보드 오브 트러스티스 오브 더 리랜드 스탠포드 주니어 유니버시티 개선된 연료전지
JP4060657B2 (ja) 2002-07-18 2008-03-12 Ｎｅｃトーキン株式会社 固体電解コンデンサとその製造方法
WO2004059043A1 (en) 2002-12-23 2004-07-15 Anuvu, Inc., A California Corporation Channel-less proton exchange membrane fuel cell
US7195690B2 (en) 2003-05-28 2007-03-27 3M Innovative Properties Company Roll-good fuel cell fabrication processes, equipment, and articles produced from same
JP2005228633A (ja) 2004-02-13 2005-08-25 Sumitomo Electric Ind Ltd レドックスフロー電池セルおよびレドックスフロー電池
US7309540B2 (en) 2004-05-21 2007-12-18 Sarnoff Corporation Electrical power source designs and components
TWI244798B (en) 2004-09-01 2005-12-01 Nan Ya Printed Circuit Board C Method of improving contact between bipolar plate and mea of flat panel fuel cell
TWI241048B (en) 2004-09-01 2005-10-01 Nan Ya Printed Circuit Board C Method for manufacturing bipolar plate and direct methanol fuel cell
US7378177B2 (en) 2004-09-30 2008-05-27 Proton Energy Systems, Inc. Electrochemical cell bipolar plate
WO2006053727A2 (de) 2004-11-18 2006-05-26 Behr Gmbh & Co. Kg Vorrichtung zur durchführung einer chemischen reaktion
US8029927B2 (en) 2005-03-22 2011-10-04 Blue Spark Technologies, Inc. Thin printable electrochemical cell utilizing a “picture frame” and methods of making the same
DK1905117T3 (da) * 2005-06-20 2019-08-19 Newsouth Innovations Pty Ltd Forbedrede perfluorerede membraner og forbedrede elektrolytter til redoxceller og batterier
US7736788B2 (en) 2005-08-12 2010-06-15 Nanyang Technological University Pattern molding of polymeric flow channels for micro fuel cells
ATE402494T1 (de) 2005-09-06 2008-08-15 Sgl Carbon Ag Elektroden für brennstoffzellen
US8597453B2 (en) 2005-12-05 2013-12-03 Manotek Instriments, Inc. Method for producing highly conductive sheet molding compound, fuel cell flow field plate, and bipolar plate
US7659022B2 (en) 2006-08-14 2010-02-09 Modine Manufacturing Company Integrated solid oxide fuel cell and fuel processor
JP2008047313A (ja) 2006-08-11 2008-02-28 Nok Corp 燃料電池
JP2008078104A (ja) 2006-08-23 2008-04-03 Sumitomo Metal Ind Ltd バイポーラプレート用部材、バイポーラプレート積層体、セル構造体および固体高分子形燃料電池
JP5068052B2 (ja) 2006-09-29 2012-11-07 昭和電工株式会社 燃料電池用セパレータ、燃料電池用セルおよび燃料電池用セルユニット、ならびに燃料電池用セパレータおよび燃料電池用セルユニットの製造方法
JP5181634B2 (ja) 2006-12-04 2013-04-10 トヨタ自動車株式会社 燃料電池
US8012284B2 (en) 2006-12-15 2011-09-06 3M Innovative Properties Company Method and apparatus for fabricating roll good fuel cell subassemblies
US8835079B2 (en) 2007-06-08 2014-09-16 GM Global Technology Operations LLC Fuel cell separator plate surface treatment by laser ablation
US9065086B2 (en) 2007-06-19 2015-06-23 GM Global Technology Operations LLC Thermoplastic bipolar plate
JP2011501383A (ja) 2007-10-26 2011-01-06 サイオン パワー コーポレイション バッテリ電極用プライマー
US8785023B2 (en) 2008-07-07 2014-07-22 Enervault Corparation Cascade redox flow battery systems
US7820321B2 (en) 2008-07-07 2010-10-26 Enervault Corporation Redox flow battery system for distributed energy storage
WO2010033118A1 (en) 2008-09-18 2010-03-25 Utc Fuel Cells, Llc Bipolar plate for a fuel cell
US8765320B2 (en) 2008-11-26 2014-07-01 Ballard Power Systems Inc. External manifold for minimizing external leakage of reactant from cell stack
US8389177B2 (en) 2008-12-22 2013-03-05 Gm Global Technology Operations Combined subgasket and membrane support
JP2012513655A (ja) * 2008-12-23 2012-06-14 アイティーアイ・スコットランド・リミテッド チタン複合材電極およびその製造方法
CN106159189B (zh) 2010-03-30 2019-11-01 应用材料公司 高性能ZnFe液流电池组
JP2011216433A (ja) * 2010-04-02 2011-10-27 Tokai Carbon Co Ltd 燃料電池用セパレータの製造方法
JP2011228059A (ja) 2010-04-16 2011-11-10 Sumitomo Electric Ind Ltd レドックスフロー電池用双極板
PH12013500003A1 (en) 2010-06-29 2017-08-23 Squirrel Holdings Ltd Compact frameless bipolar stack for a multicell electrochemical reactor with planar bipolar electrical interconnects and internal ducting of circulation of electrolyte solutions through all respective cell compartments
US8802304B2 (en) 2010-08-10 2014-08-12 Eos Energy Storage, Llc Bifunctional (rechargeable) air electrodes comprising a corrosion-resistant outer layer and conductive inner layer
US9123962B2 (en) 2011-02-07 2015-09-01 United Technologies Corporation Flow battery having electrodes with a plurality of different pore sizes and or different layers
JP6013463B2 (ja) * 2011-06-01 2016-10-25 ケース ウエスタン リザーブ ユニバーシティ 鉄基流動電池
JP5751032B2 (ja) 2011-06-06 2015-07-22 トヨタ自動車株式会社 酵素燃料電池
WO2012177255A1 (en) 2011-06-23 2012-12-27 Utc Power Corporation Flow field configuration for fuel cell plate
US9774044B2 (en) 2011-09-21 2017-09-26 United Technologies Corporation Flow battery stack with an integrated heat exchanger
US8822057B2 (en) 2011-10-17 2014-09-02 Lockheed Martin Corporation High surface area flow battery electrodes
EP3288099B1 (en) 2011-10-24 2021-01-06 Advanced Battery Concepts, LLC Bipolar battery assembly
DE102011120802A1 (de) 2011-12-10 2013-06-13 Daimler Ag Bipolarplatte zumindest aus einem Kunststoff für eine Brennstoffzelle und Verfahren zur Herstellung einer solchen Bipolarplatte
CN107254058A (zh) 2011-12-28 2017-10-17 旭化成株式会社 氧化还原液流二次电池和氧化还原液流二次电池用电解质膜
CN103187551B (zh) 2011-12-30 2015-07-08 北京好风光储能技术有限公司 一种锂离子液流电池
CN104115327B (zh) 2012-03-30 2016-08-24 国立大学法人东京大学 可逆燃料电池以及可逆燃料电池系统
US9130217B2 (en) 2012-04-06 2015-09-08 Primus Power Corporation Fluidic architecture for metal-halogen flow battery
US8691413B2 (en) * 2012-07-27 2014-04-08 Sun Catalytix Corporation Aqueous redox flow batteries featuring improved cell design characteristics
KR102123785B1 (ko) 2012-08-17 2020-06-18 누베라 퓨엘 셀스, 엘엘씨 전기화학 전지에 사용하기 위한 양극판의 디자인
EP2973827B1 (en) 2013-03-15 2019-06-19 United Technologies Corporation Flow battery flow field having volume that is function of power parameter, time parameter and concentration parameter
WO2014168081A1 (ja) * 2013-04-11 2014-10-16 昭和電工株式会社 カーボン部材、カーボン部材の製造方法、レドックスフロー電池および燃料電池
US9293772B2 (en) 2013-04-11 2016-03-22 Ut-Battelle, Llc Gradient porous electrode architectures for rechargeable metal-air batteries
JP2014207122A (ja) * 2013-04-12 2014-10-30 パナソニック株式会社 双極板及びその製造方法
EP3514873B1 (en) 2013-09-23 2021-05-19 Lockheed Martin Energy, LLC Bipolar plate design with non-conductive picture frame
US10411284B2 (en) 2013-10-03 2019-09-10 Massachusetts Institute Of Technology Flow battery with dispersion blocker between electrolyte channel and electrode
EP3069396A2 (en) 2013-11-13 2016-09-21 R. R. Donnelley & Sons Company Battery
US20160036060A1 (en) 2014-07-30 2016-02-04 Concurrent Technologies Corporation Composite electrode for flow battery
CN104241661B (zh) * 2014-09-23 2017-04-19 中国科学院金属研究所 一种全钒液流电池用复合电极的制备方法
CN107431213A (zh) * 2015-03-24 2017-12-01 3M创新有限公司 多孔电极及由其制得的电化学电池和液流蓄电池
US9443782B1 (en) 2015-08-11 2016-09-13 Freescale Semiconductor, Inc. Method of bond pad protection during wafer processing
KR20180042852A (ko) 2015-08-19 2018-04-26 록히드 마틴 에너지, 엘엘씨 플로우 배터리 내의 고형물 저감 방법

Also Published As

Publication number Publication date
WO2016168087A1 (en) 2016-10-20
US20160308224A1 (en) 2016-10-20
CA2981758A1 (en) 2016-10-20
KR102560077B1 (ko) 2023-07-25
CN107534176A (zh) 2018-01-02
US10418647B2 (en) 2019-09-17
JP2018518012A (ja) 2018-07-05
EP3284132A1 (en) 2018-02-21
JP6748109B2 (ja) 2020-08-26
KR20170137828A (ko) 2017-12-13
EP3284132A4 (en) 2019-05-08
CN107534176B (zh) 2020-12-11
MX2017013227A (es) 2018-02-23

Similar Documents

Publication Publication Date Title
MX390398B (es) Mitigacion de reacciones parasitas dentro de baterias de flujo.
WO2015074037A3 (en) Separator enclosures for electrodes and electrochemical cells
PH12017500654A1 (en) Electrochemical cells having semi-solid electrodes and methods of manufacturing the same
WO2017176936A8 (en) Lithium metal electrodes and batteries thereof
EA201790557A1 (ru) Узел выводов для биполярной электрохимической ячейки или аккумулятора
MX2018014523A (es) Baterias de flujo que tienen un electrodo con un gradiente de densidad y metodos para la produccion y uso de las mismas.
SA521421194B1 (ar) مفاعل تدفق كهروكيميائي
EP4668405A3 (en) Single pouch battery cells and methods of manufacture
WO2016004320A3 (en) Multi-electrode electrochemical cell and method of making the same
WO2012167057A3 (en) Iron based flow batteries
MX378624B (es) Celda electroquimica hibrida.
ATE535951T1 (de) Integrierte stromunterbrechungsvorrichtung für lithiumionen-zellen
SA518400187B1 (ar) خلايا كهروكيميائية لها مجالات تدفق مصممة وطرق لإنتاجها
MX2017007666A (es) Celda electroquimica y metodo para producir la misma.
WO2013066829A3 (en) Internal convection cell
JP2014096376A5 (es)
MX378903B (es) Sistemas electroquimicos que incorporan alto potencial de circuito abierto.
MX367686B (es) Metodo para operar celdas electroquimicas que comprenden combustible electrodepositado.
HUE072138T2 (hu) Elektródszerelvény, akkumulátorcella, akkumulátor, elektromos berendezés
WO2016044586A3 (en) Copper based flow batteries
WO2014160087A3 (en) Hetero-ionic aromatic additives for electrochemical cell
MY195773A (en) Multi-Cell Ultracapacitor
WO2013025578A3 (en) Flow battery with reactant separation
EP4386959A3 (en) Overcharge protection for a battery module
WO2014131059A8 (en) Energy conversion and storage device and mobile electronic device containing same