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zhishenglv金蟲 (著名寫手)
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[ACS Energy Letters] 可定制電化學(xué)儲(chǔ)能器件 散金100~
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custom-made electrochemical energy storage devices abstract customizable electrochemical energy storage device represents a key technology for the realization of wearable and bio-integrated electronics. this perspective begins with a brief introduction of the drive for customizable electrochemical energy storage devices. the following section involves the first-decade development trajectory of the customizable electrochemical energy storage devices. it then discusses the challenges and the future directions of the customizable electrochemical energy storage devices, calling for customizable electrochemical energy storage devices that allow users to select, design and change the functions (including capacity, flexibility, shapes, and functionalities) according to real-world application scenarios. the leveraging of the customizable electrochemical energy storage devices will shed a light on smarter and programmable electrochemical energy storage devices to power future wearable and bio-integrated electronics. key content： the drive for customizable electrochemical energy storage devices the first-decade journey towards customizable ees devices innovations in materials and structures of customizable devices further extension of efficient fabrication methods and integrated multifunctional systems artificial intelligence enabled programmable combinations of customizable properties https://pubs.acs.org/doi/10.1021/acsenergylett.8b02408 托老師的福，邀稿的perspective, 算是對(duì)自己做的工作的一個(gè)小結(jié)展望，希望對(duì)大家未來開展方向有用   未完待續(xù)，集齊東西再來做個(gè)總結(jié)帖。。。附帶幫我前面兩篇文章推銷下 蜂窩狀任意三維形狀超級(jí)電容器 (聚吡咯/黑磷氧化物/石墨烯氧化物) honeycomb‐lantern‐inspired 3d stretchable supercapacitors with enhanced specific areal capacitance abstract traditional stretchable supercapacitors, possessing a thin electrode and a 2d shape, have limited areal specific areal capacitance and are incompatible with 3d wearables. to overcome the limitations of 2d stretchable supercapacitors, it is highly desirable to develop 3d stretchable supercapacitors with higher mass loading and customizable shapes. in this work, a new 3d stretchable supercapacitor inspired by a honeycomb lantern based on an expandable honeycomb composite electrode composed of polypyrrole/black‐phosphorous oxide electrodeposited on carbon nanotube film is reported. the 3d stretchable supercapacitors possessing device‐thickness‐independent ion‐transport path and stretchability can be crafted into customizable device thickness for enhancing the specific areal energy storage and integrability with wearables. notably, a 1.0 cm thick rectangular‐shaped supercapacitor shows enhanced specific areal capacitance of 7.34 f cm−2, which is about 60 times higher than that of the original 2d supercapacitor (120 mf cm−2) at a similar discharge rate. the 3d supercapacitor can also maintain a capacitance ratio of 95% even under the reversible strain of 2000% after 10 000 stretch‐and‐release cycles, superior to state‐of‐the‐art stretchable supercapacitors. the enhanced specific areal energy storage and the customizability in shapes of the 3d stretchable supercapacitors show immense promise in a wide range of applications in stretchable and wearable electronics. keywords 3d supercapacitors, black phosphorus, expandable honeycomb structures, flexible electronics, polypyrrole 原文鏈接： https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201805468 可編輯超級(jí)電容 （mno2 納米線/碳納米管/納米纖維素） editable supercapacitors with customizable stretchability based on mechanically strengthened ultralong mno2 nanowire composite abstract：although some progress has been made on stretchable supercapacitors, traditional stretchable supercapacitors fabricated by predesigning structured electrodes for device assembling still lack the device-level editability and programmability. to adapt to wearable electronics with arbitrary configurations, it is highly desirable to develop editable supercapacitors that can be directly transferred into desirable shapes and stretchability. in this work, editable supercapacitors for customizable shapes and stretchability using electrodes based on mechanically strengthened ultralong mno2 nanowire composites are developed. a supercapacitor edited with honeycomb-like structure shows a specific capacitance of 227.2 mf cm−2 and can be stretched up to 500% without degradation of electrochemical performance, which is superior to most of the state-of-the-art stretchable supercapacitors. in addition, it maintains nearly 98% of the initial capacitance after 10 000 stretch-and-release cycles under 400% tensile strain. as a representative of concept for system integration, the editable supercapacitors are integrated with a strain sensor, and the system exhibits a stable sensing performance even under arm swing. being highly stretchable, easily programmable, as well as connectable in series and parallel, an editable supercapacitor with customizable stretchability is promising to produce stylish energy storage devices to power various portable, stretchable, and wearable devices. 原文鏈接：https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201704531 [ Last edited by zhishenglv on 2019-1-23 at 10:56 ] |
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送紅花一朵zhishenglv: 回帖置頂 2019-02-21 10:47:57
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組裝成對(duì)稱電容 可能因?yàn)閷?duì)稱性或工藝的一些原因窗口可能會(huì)變窄。 a highly durable, transferable, and substrate‐versatile high‐performance all‐polymer micro‐supercapacitor with plug‐and‐play function https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201605137 這篇文章的ppy測(cè)試窗口電壓就是0.5 v的。 1）如果完全敞開體系，凝膠完全固化的話，凝膠電解質(zhì)的導(dǎo)電率會(huì)很差的，測(cè)出來的性能肯定會(huì)直線下降。最好還是在半膠態(tài)的時(shí)候測(cè)試（水含量越大，電導(dǎo)率越好，器件性能越好；水含量越少，電導(dǎo)率越低，粘度提高，機(jī)械性能提高，最后還是要找一個(gè)你要的平衡態(tài)）。到合適的凝膠狀態(tài)（自己預(yù)估一個(gè)恒定時(shí)間），兩側(cè)電極覆蓋pi、pet膜或其他封裝材料，可以阻止水分進(jìn)一步揮發(fā)。凝膠電解質(zhì)最后狀態(tài)和pva分子量 (intrinsically stretchable supercapacitors composed of polypyrrole electrodes and highly stretchable gel electrolyte https://pubs.acs.org/doi/abs/10.1021/am402130j 這篇文章研究pva分子量對(duì)pva成成膜和拉力的影響)，鹽（有很多偏中性的鹽有吸濕能力），還有空氣濕度都有關(guān)系。條件可以的話可以在一個(gè)恒定濕度的箱子里測(cè)試。2）一般凝膠電解質(zhì)的導(dǎo)電率相對(duì)液態(tài)的低，兩電極之間的間距不要太遠(yuǎn)減少內(nèi)阻。加壓三明治裝置，我之前主要是加壓控制器件統(tǒng)一厚度，把氣泡和點(diǎn)電極之間多余凝膠電解液趕出。材料特性不一樣，具體壓力看材料，有些材料耐壓，有些材料不耐壓，個(gè)人不建議統(tǒng)一壓力。 |
59樓2019-02-21 10:43:25
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