Nanosized Flame Retarded HydroxideMagnesium/Poly(ethylene-oxide) Composite Polymer Electrolyte

Li, Yajuan; Zhan, Hui; Liu, Suqin; Huang, Kang; Zhou, Yunhong

doi:10.3866/pku.whxb20100818

Acta Physico-Chimica Sinica

2010

DOI: 10.3866/pku.whxb20100818

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Nanosized Flame Retarded HydroxideMagnesium/Poly(ethylene-oxide) Composite Polymer Electrolyte

Yajuan Li¹,

Hui Zhan²,

Suqin Liu³

et al.

Abstract: ： Wepreparednanosizedhydroxidemagnesium(Mg(OH) 2)asaplasticizerandaflame鄄retardingadditive forapoly(ethylene鄄oxide)(PEO)basedpolymerelectrolyte.Wecharacterizedthepreparedcompoundusingtransition electronmicroscopy(TEM),X鄄raydiffraction(XRD),andthermogravimetry(TG).Thepreparedhydroxidemagnesium particlesarehexagonalcrystalswithsizesof50-80nm.Thedecompositionofthepreparednanosizedhydroxide magnesiumstartedat340 益.ElectrochemicalmeasurementsshowsthattheionicconductivityoftheMg(OH) 2 /PEO compositepolymerelectrolyt… Show more

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Cited by 2 publications

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Ion‐Exchange‐Induced Phase Transition Enables an Intrinsically Air Stable Hydrogarnet Electrolyte for Solid‐State Lithium Batteries

Cui,

Bai,

Yang

et al. 2024

Advanced Science

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Inferior air stability is a primary barrier for large‐scale applications of garnet electrolytes in energy storage systems. Herein, a deeply hydrated hydrogarnet electrolyte generated by a simple ion‐exchange‐induced phase transition from conventional garnet, realizing a record‐long air stability of more than two years when exposed to ambient air is proposed. Benefited from the elimination of air‐sensitive lithium ions at 96 h/48e sites and unobstructed lithium conduction path along tetragonal sites (12a) and vacancies (12b), the hydrogarnet electrolyte exhibits intrinsic air stability and comparable ion conductivity to that of traditional garnet. Moreover, the unique properties of hydrogarnet pave the way for a brand‐new aqueous route to prepare lithium metal stable composite electrolyte on a large‐scale, with high ionic conductivity (8.04 × 10−4 S cm−1), wide electrochemical windows (4.95 V), and a high lithium transference number (0.43). When applied in solid‐state lithium batteries (SSLBs), the batteries present impressive capacity and cycle life (164 mAh g−1 with capacity retention of 89.6% after 180 cycles at 1.0C under 50 °C). This work not only designs a new sort of hydrogarnet electrolyte, which is stable to both air and lithium metal but also provides an eco‐friendly and large‐scale fabrication route for SSLBs.

show abstract

Ion‐Exchange‐Induced Phase Transition Enables an Intrinsically Air Stable Hydrogarnet Electrolyte for Solid‐State Lithium Batteries

Cui,

Bai,

Yang

et al. 2024

Advanced Science

View full text Add to dashboard Cite

show abstract

Research Progress on Modification and Application of Raw Lacquer

Fang

2022

ChemistrySelect

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Raw lacquer is a kind of natural polymer coating with excellent performance. The lacquer film formed after drying of pure natural raw lacquer has the advantages of hard quality, heat resistance and corrosion resistance. However, natural raw lacquer also has some disadvantages. For example, it must be dried at a specific temperature and humidity to form a film, difficult to spray, dark color, poor alkali resistance, easy to cause human skin allergy and so on. Due to urushiol is the main film‐forming material in raw lacquer, its performance and drying film‐forming process will directly affect the properties of the lacquer film. Taking advantage of the particularity of its structure, urushiol can be modified in its drying film‐forming process, so as to speed up its drying film‐forming process or obtain a modified lacquer film with excellent performance. Thus, the research on raw lacquer and its modification mainly focuses on the modification of urushiol, the main film‐forming substance of the raw lacquer. This paper reviews the modification and combined methods of the natural urushiol by researchers in recent years, mainly including urushiol polymerization catalyzed by proton acid, urushiol polymerization initiated by UV irradiation, copolymerized with other polymer materials, reacted with metal compounds to form urushiol metal polymers, and formed composite coatings with multi‐wall carbon nanotubes, graphene oxide, nano‐TiO2 and so on. The modified lacquer has shown excellent performance in some aspects, such as the gloss and hardness of the lacquer film have been significantly improved, the heat resistance, acid and alkali resistance have been enhanced, the ageing resistance and solvent resistance have been improved, the impact strength and toughness have been enhanced, the curing time of the lacquer film has been greatly shortened and so on. Then the application fields and development trends of the modified raw lacquer are discussed, hoping to provide a theoretical basis for the further development and utilization of raw lacquer.

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Nanosized Flame Retarded HydroxideMagnesium/Poly(ethylene-oxide) Composite Polymer Electrolyte

Cited by 2 publications

References 16 publications

Ion‐Exchange‐Induced Phase Transition Enables an Intrinsically Air Stable Hydrogarnet Electrolyte for Solid‐State Lithium Batteries

Ion‐Exchange‐Induced Phase Transition Enables an Intrinsically Air Stable Hydrogarnet Electrolyte for Solid‐State Lithium Batteries

Research Progress on Modification and Application of Raw Lacquer

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