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[ACS Energy Letters] 可定制電化學儲能器件 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, 算是對自己做的工作的一個小結(jié)展望,希望對大家未來開展方向有用 ![]() ![]() ![]() 未完待續(xù),集齊東西再來做個總結(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 ] |
鋰離子電池專題(技術(shù)答疑) |
» 搶金幣啦!回帖就可以得到:
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很新穎的方向,加油 發(fā)自小木蟲Android客戶端 |
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樓主,您好!早在1月就拜讀了AM的那篇大作,當時就認為文章的思路很巧妙。我剛涉及超容的電極材料研究,目前還在組裝階段,就遇到了很多問題,想向你咨詢一下,希望不吝賜教。我做的聚吡咯導電織物,單個電極材料測試時,電壓窗口0.8V,組裝后,電壓窗口變成了0.5V,應該是我組裝的問題,我看文獻里大都還是0.8V,疑惑如下:1.用的PVA/H2SO4或PVA/H3PO4凝膠電解質(zhì),高溫煮透后呈透明狀態(tài),在50℃左右浸泡電極材料2小時,取出后加隔膜組裝,問題就出來了,很多文獻中說等待電解質(zhì)凝固,這個凝固的狀態(tài)卻不好控制,一不留神就干了,凝固到什么狀態(tài)是比較合適的呢?2.組裝時,三明治式的裝置需要加壓嗎?如果加壓,多大的壓力比較合適?非常期待您的解答。 |
| 不錯不錯!謝謝分享,能從中學習到一些知識。 |
送紅花一朵|
組裝成對稱電容 可能因為對稱性或工藝的一些原因窗口可能會變窄。 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)的導電率會很差的,測出來的性能肯定會直線下降。最好還是在半膠態(tài)的時候測試(水含量越大,電導率越好,器件性能越好;水含量越少,電導率越低,粘度提高,機械性能提高,最后還是要找一個你要的平衡態(tài))。到合適的凝膠狀態(tài)(自己預估一個恒定時間),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系。條件可以的話可以在一個恒定濕度的箱子里測試。2)一般凝膠電解質(zhì)的導電率相對液態(tài)的低,兩電極之間的間距不要太遠減少內(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,個人不建議統(tǒng)一壓力。 |
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需要與樓主多多交流,目前我們課題組以及我的研究方向也是柔性可穿戴儲能設備這塊 發(fā)自小木蟲Android客戶端 |








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