Energy storage devices containing a carbon nanotube aerogel and methods for making the same

    公开(公告)号:US10938037B2

    公开(公告)日:2021-03-02

    申请号:US14194531

    申请日:2014-02-28

    Abstract: Conventional rechargeable batteries, such as lithium-ion batteries, are somewhat limited in their energy storage density. Sulfur-based batteries can provide improved energy storage density, but their use can be hampered by sulfur's low electrical conductivity. Energy storage devices, particularly batteries, can have a first electrode that includes a carbon nanotube aerogel, and an electroactive material containing sulfur that is incorporated in the carbon nanotube aerogel. Methods for forming an energy storage device can include incorporating an electroactive material containing sulfur in a carbon nanotube aerogel, compressing the carbon nanotube aerogel to form a compressed carbon nanotube aerogel, and disposing a first electrode containing the compressed carbon nanotube aerogel and the electroactive material in an electrolyte with a second electrode and a plurality of lithium ions, such that a separator material permeable to the lithium ions is between the first electrode and the second electrode.

    Heat management and thermal shielding techniques using compressed carbon nanotube aerogel materials
    2.
    发明授权
    Heat management and thermal shielding techniques using compressed carbon nanotube aerogel materials 有权
    使用压缩碳纳米管气凝胶材料的热管理和热屏蔽技术

    公开(公告)号:US09581282B1

    公开(公告)日:2017-02-28

    申请号:US13886238

    申请日:2013-05-02

    Abstract: Compressed carbon nanotube aerogel materials can be used in heat management and thermal shielding applications. Methods for heat management and thermal shielding of an object can include placing a compressed carbon nanotube aerogel material between an object and its surrounding environment, and establishing a thermal gradient within the compressed carbon nanotube aerogel material by exposing the compressed carbon nanotube aerogel material to the object or to the surrounding environment. When the object and the surrounding environment are in thermal communication with one another, the compressed carbon nanotube aerogel material can reduce an amount of heat transferred between the object and the surrounding environment. As a result of establishing the thermal gradient within the compressed carbon nanotube aerogel material, an electric current may be generated in some instances.

    Abstract translation: 压缩碳纳米管气凝胶材料可用于热管理和热屏蔽应用。 用于物体的热管理和热屏蔽的方法可以包括将压缩的碳纳米管气凝胶材料放置在物体与其周围环境之间,并且通过将压缩的碳纳米管气凝胶材料暴露于物体而在压缩的碳纳米管气凝胶材料内建立热梯度 或周围环境。 当物体和周围环境彼此热连通时,压缩的碳纳米管气凝胶材料可以减少物体与周围环境之间传递的热量。 作为在压缩碳纳米管气凝胶材料内建立热梯度的结果,在一些情况下可能产生电流。

    Articles containing non-visible identifying marks formed from nanomaterials and methods utilizing the same
    3.
    发明授权
    Articles containing non-visible identifying marks formed from nanomaterials and methods utilizing the same 有权
    包含由纳米材料形成的不可见识别标记的文章和利用其的方法

    公开(公告)号:US09179542B2

    公开(公告)日:2015-11-03

    申请号:US14256840

    申请日:2014-04-18

    Abstract: Identifying marks are often used for authentication and tracking purposes with various types of articles, but they can sometimes be subject to replication or removal by an outside entity, such as a person or group having malicious intent. Carbon nanotubes and other carbon nanomaterials can be used to form identifying marks that are not visible to the naked eye, thereby making the marks more difficult for an outside entity to tamper with. Various articles can include an identifying mark that is not visible to the naked eye, the identifying mark containing a nanomaterial that includes a plurality of carbon nanotubes with a registered distribution of chiralities. The registered distribution of chiralities can be further tailored to increase the level of security provided by the mark.

    Abstract translation: 识别标记通常用于与各种类型的文章的认证和跟踪目的,但是它们有时可能被外部实体(例如具有恶意意图的人或组)的复制或删除。 碳纳米管和其他碳纳米材料可以用于形成肉眼不可见的识别标记,从而使得外部实体篡改的标记更加困难。 各种物品可以包括肉眼不可见的识别标记,识别标记包含纳米材料,其包括具有登记的手性分布的多个碳纳米管。 可以进一步量身定制手写登记的分发,以提高商标的安全性。

    Polymer composites containing carbon nanotubes and methods related thereto

    公开(公告)号:US10960576B1

    公开(公告)日:2021-03-30

    申请号:US16424317

    申请日:2019-05-28

    Abstract: Polymer composites containing carbon nanotubes often exhibit high glass transition temperatures, which can complicate their use in additive manufacturing processes. Extruded filaments containing carbon nanotubes and residual solvent can have desirably lowered glass transition temperatures. Extruded filaments can contain a polymer as a continuous phase, a nanomaterial such as carbon nanotubes homogeneously mixed throughout the continuous phase, and above 0% to about 15% solvent by weight. Methods for making extruded filaments can include producing a solvated composite by dissolving a polymer and a nanomaterial in a solvent, producing a partially desolvated composite by reducing a solvent content of the solvated composite to a range of about 10% to about 30% by weight, forming particles of the partially desolvated composite, supplying the particles to an extruder, and extruding a filament having the polymer as a continuous phase and the nanomaterial homogeneously mixed throughout the continuous phase, which also contains residual solvent.

    Polymer composites containing carbon nanotubes and methods related thereto

    公开(公告)号:US10343304B1

    公开(公告)日:2019-07-09

    申请号:US15415776

    申请日:2017-01-25

    Abstract: Polymer composites containing carbon nanotubes often exhibit high glass transition temperatures, which can complicate their use in additive manufacturing processes. Extruded filaments containing carbon nanotubes and residual solvent can have desirably lowered glass transition temperatures. Extruded filaments can contain a polymer as a continuous phase, a nanomaterial such as carbon nanotubes homogeneously mixed throughout the continuous phase, and above 0% to about 15% solvent by weight. Methods for making extruded filaments can include producing a solvated composite by dissolving a polymer and a nanomaterial in a solvent, producing a partially desolvated composite by reducing a solvent content of the solvated composite to a range of about 10% to about 30% by weight, forming particles of the partially desolvated composite, supplying the particles to an extruder, and extruding a filament having the polymer as a continuous phase and the nanomaterial homogeneously mixed throughout the continuous phase, which also contains residual solvent.

    Heat management and thermal shielding techniques using compressed carbon nanotube aerogel materials

    公开(公告)号:US10066883B1

    公开(公告)日:2018-09-04

    申请号:US15415799

    申请日:2017-01-25

    Abstract: Compressed carbon nanotube aerogel materials can be used in heat management and thermal shielding applications. Methods for heat management and thermal shielding of an object can include placing a compressed carbon nanotube aerogel material between an object and its surrounding environment, and establishing a thermal gradient within the compressed carbon nanotube aerogel material by exposing the compressed carbon nanotube aerogel material to the object or to the surrounding environment. When the object and the surrounding environment are in thermal communication with one another, the compressed carbon nanotube aerogel material can reduce an amount of heat transferred between the object and the surrounding environment. As a result of establishing the thermal gradient within the compressed carbon nanotube aerogel material, an electric current may be generated in some instances.

    Devices containing carbon nanomaterial electrical interconnects overcoated with metal nitride films and methods for production thereof
    10.
    发明授权
    Devices containing carbon nanomaterial electrical interconnects overcoated with metal nitride films and methods for production thereof 有权
    包含用金属氮化物膜覆盖的碳纳米材料电互连的装置及其生产方法

    公开(公告)号:US08822352B1

    公开(公告)日:2014-09-02

    申请号:US14085578

    申请日:2013-11-20

    Abstract: Metal nitride coatings containing carbon can be either electrically conductive or substantially non-conductive depending on the degree to which they have been exposed to an oxidative environment. Substantially non-conductive metal nitride coatings can be used as protective layers in electrical devices. Particularly in an electrical device containing carbon nanomaterials, the metal nitride coatings can be used to mask the device's operational characteristics. Such devices can contain an electrical interconnect containing a carbon nanomaterial and a substantially non-conductive coating on the carbon nanomaterial. The substantially non-conductive coating can contain at least one substantially non-conductive metal nitride layer and at least some carbon. Methods for making such devices and metal nitride coatings are also described herein.

    Abstract translation: 包含碳的金属氮化物涂层可以是导电的或基本上不导电的,这取决于它们暴露于氧化环境的程度。 基本上不导电的金属氮化物涂层可用作电气设备中的保护层。 特别是在含有碳纳米材料的电气装置中,金属氮化物涂层可用于掩蔽该装置的操作特性。 这种装置可以包含在碳纳米材料上含有碳纳米材料和基本不导电的涂层的电互连。 基本上不导电的涂层可以包含至少一个基本上不导电的金属氮化物层和至少一些碳。 本文还描述了制造这种装置和金属氮化物涂层的方法。

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