CN116207224A - 球形纳米石墨烯硅高储量负极 - Google Patents
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 36
- 239000010703 silicon Substances 0.000 title claims abstract description 36
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
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- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
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- 229910052723 transition metal Inorganic materials 0.000 description 1
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Abstract
本发明属于锂电池技术领域,具体为球形纳米石墨烯硅高储量负极,包括高细度硅、高纯度高细度石墨粉、和性剂导电胶以及防冻液按照配方具体搭配比例制备而成;其中,高细度硅按照重量份计由以下成分例制成:3‑5份;高纯度高细度石墨粉按照重量份计由以下成分例制成:1‑3份;和性剂按照重量份计由以下成分例制成:3‑5份;导电胶按照重量份计由以下成分例制成:1‑2份;防冻液按照重量份计由以下成分例制成:4‑6份,其结构合理,增加了储电量,安全性更高,散热性好,防冻性能好,稳定性高,达到耐高低温。
Description
技术领域
本发明涉及锂电池技术领域,具体为球形纳米石墨烯硅高储量负极。
背景技术
目前商业化的动力型锂离子电池主要为钴酸锂、锰酸锂、磷酸铁锂和镍钴锰三元电池。动力电池要求电池具有较高的能量密度(对应高续航路程)和高安全性,而钴酸锂因为其自身热安稳性最差(安全性差),不适用于动力电池范畴(但凭仗高压实密度和能量密度现在是3C范畴干流),而锰酸锂能量密度较低使用受限,磷酸铁锂作为较早研制的技能,优点是安全性极好、环保、循环寿数高,但缺陷在于能量密度较低且已经挨近到达天花板,而三元自身有着高能量密度上限的优势,未来跟着技能持续前进,安全性问题逐渐改善,在其他电池技能未实现重大突破之前,三元现在仍然是动力电池范畴最优之选。
锂离子电池具有能量密度高、循环性能优以及自放电率低等优点,广泛应用于储能、电动汽车以及电子产品等邻域。锂离子电池的活性材料多为过渡金属氧化物或者过渡金属盐,且大多数都是半导体或者绝缘体,导电性较差,限制了电池中电子迁移速率,制约性能,而且可能造成性能衰减或失效,因此必须加入导电剂来改善锂离子电池的导电性,以提高充放电倍率和循环性能。
现有技术中,球形纳米石墨烯硅高储量负极在使用的过程中存在着一些不足,比如安全性较低,且储电量低,散热效果差,不利于推广使用,为此我们提出一种新型的球形纳米石墨烯硅高储量负极。
发明内容
本部分的目的在于概述本发明的实施方式的一些方面以及简要介绍一些较佳实施方式。在本部分以及本申请的说明书摘要和发明名称中可能会做些简化或省略以避免使本部分、说明书摘要和发明名称的目的模糊,而这种简化或省略不能用于限制本发明的范围。
鉴于现有技术中存在的问题,提出了本发明。
因此,本发明的目的是提供球形纳米石墨烯硅高储量负极,能够实现在使用的过程中增加了储电量,安全性更高,散热性好,防冻性能好,稳定性高,达到耐高低温。
为解决上述技术问题,根据本发明的一个方面,本发明提供了如下技术方案:
球形纳米石墨烯硅高储量负极,其包括高细度硅、高纯度高细度石墨粉、和性剂导电胶以及防冻液按照配方具体搭配比例制备而成;
其中,
高细度硅按照重量份计由以下成分例制成:3-5份;
高纯度高细度石墨粉按照重量份计由以下成分例制成:1-3份;
和性剂按照重量份计由以下成分例制成:3-5份;
导电胶按照重量份计由以下成分例制成:1-2份;
防冻液按照重量份计由以下成分例制成:4-6份。
作为本发明所述的球形纳米石墨烯硅高储量负极的一种优选方案,其中:所述高细度硅、高纯度高细度石墨粉的制备方法流程为,用物理法在密闭容器内,采取振荡法,四面八方使冲击力达到1.5万N(牛)以上,使高细度硅、高纯度高细度石墨粉达到纳米级。
作为本发明所述的球形纳米石墨烯硅高储量负极的一种优选方案,其中:所述和性剂为高细度的锰或者高细度的铝其中的任意一种和两中混合。
作为本发明所述的球形纳米石墨烯硅高储量负极的一种优选方案,其中:所述导电胶内添加定量的环氧乙烷防冻,喷涂粘到超薄0.1至0.2毫米。
作为本发明所述的球形纳米石墨烯硅高储量负极的一种优选方案,其中:所述防冻液选用乙二醇防冻液、无水防冻液、全有机防冻液其中的一种。
与现有技术相比,本发明的有益效果是:用物理法在密闭容器内,采取多种措施办法,上下左右使冲击力达到1万N(牛)以上,使石墨粉和硅达到纳米级,使活性能量增加一千倍,储电能量增加更多。纳米硅稳定性能高,与纳米石墨烯球互补性强,达到球形后散热更好,活性、能量更强大。再加一定比例导电、散热、防冻效果特好的高科技负极专用导电胶,使充放电快,电损小,储量大,耐高低温,使固态三元锂电池负极整体能量提升。与正极基本平衡且偏高用物理法在密闭容器内,采取多种措施办法,上下左右使冲击力达到1万N(牛)以上,使石墨粉和硅达到纳米级,使活性能量增加一千倍,储电能量增加更多。纳米硅稳定性能高,与纳米石墨烯球互补性强,达到球形后散热更好,活性、能量更强大。再加一定比例导电、散热、防冻效果特好的高科技负极专用导电胶,使充放电快,电损小,储量大,耐高低温,使固态三元锂电池负极整体能量提升。与正极基本平衡且偏高。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂,下面对本发明的具体实施方式做详细的说明。
在下面的描述中阐述了很多具体细节以便于充分理解本发明,但是本发明还可以采用其他不同于在此描述的其它方式来实施,本领域技术人员可以在不违背本发明内涵的情况下做类似推广,因此本发明不受下面公开的具体实施方式的限制。
为使本发明的目的、技术方案和优点更加清楚,下面将对本发明的实施方式作进一步地详细描述。
实施例1
本发明提供如下技术方案:球形纳米石墨烯硅高储量负极,能够实现在使用的过程中增加了储电量,安全性更高,散热性好,防冻性能好,稳定性高,达到耐高低温;
球形纳米石墨烯硅高储量负极,其包括高细度硅、高纯度高细度石墨粉、和性剂导电胶以及防冻液按照配方具体搭配比例制备而成;
其中,
高细度硅按照重量份计由以下成分例制成:3-5份;
高纯度高细度石墨粉按照重量份计由以下成分例制成:1-3份;
和性剂按照重量份计由以下成分例制成:3-5份;
导电胶按照重量份计由以下成分例制成:1-2份;
防冻液按照重量份计由以下成分例制成:4-6份。
其中:所述高细度硅、高纯度高细度石墨粉的制备方法流程为,用物理法在密闭容器内,采取振荡法,四面八方使冲击力达到1.5万N(牛)以上,使高细度硅、高纯度高细度石墨粉达到纳米级。
其中:所述和性剂为高细度的锰或者高细度的铝其中的任意一种和两中混合。
其中:所述导电胶内添加定量的环氧乙烷防冻,喷涂粘到超簿0.1至0.2毫米。
其中:所述防冻液选用乙二醇防冻液、无水防冻液、全有机防冻液其中的一种。
工作原理:在本发明使用的过程中,用物理法在密闭容器内,采取多种措施办法,上下左右使冲击力达到1万N(牛)以上,使石墨粉和硅达到纳米级,使活性能量增加一千倍,储电能量增加更多。纳米硅稳定性能高,与纳米石墨烯球互补性强,达到球形后散热更好,活性、能量更强大。再加一定比例导电、散热、防冻效果特好的高科技负极专用导电胶,使充放电快,电损小,储量大,耐高低温,使固态三元锂电池负极整体能量提升。与正极基本平衡且偏高。
虽然在上文中已经参考实施方式对本发明进行了描述,然而在不脱离本发明的范围的情况下,可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是,只要不存在结构冲突,本发明所披露的实施方式中的各项特征均可通过任意方式相互结合起来使用,在本说明书中未对这些组合的情况进行穷举性的描述仅仅是出于省略篇幅和节约资源的考虑。因此,本发明并不局限于文中公开的特定实施方式,而是包括落入权利要求的范围内的所有技术方案。
Claims (5)
1.球形纳米石墨烯硅高储量负极,其特征在于:包括高细度硅、高纯度高细度石墨粉、和性剂导电胶以及防冻液按照配方具体搭配比例制备而成;
其中,
高细度硅按照重量份计由以下成分例制成:3-5份;
高纯度高细度石墨粉按照重量份计由以下成分例制成:1-3份;
和性剂按照重量份计由以下成分例制成:3-5份;
导电胶按照重量份计由以下成分例制成:1-2份;
防冻液按照重量份计由以下成分例制成:4-6份。
2.根据权利要求1所述的球形纳米石墨烯硅高储量负极,其特征在于:所述高细度硅、高纯度高细度石墨粉的制备方法流程为,用物理法在密闭容器内,采取振荡法,四面八方使冲击力达到1.5万N(牛)以上,使高细度硅、高纯度高细度石墨粉达到纳米级。
3.根据权利要求1所述的球形纳米石墨烯硅高储量负极,其特征在于:所述和性剂为高细度的锰或者高细度的铝其中的任意一种和两中混合。
4.根据权利要求1所述的球形纳米石墨烯硅高储量负极,其特征在于:所述导电胶内添加定量的环氧乙烷防冻,喷涂粘到超薄0.1至0.2毫米。
5.根据权利要求1所述的球形纳米石墨烯硅高储量负极,其特征在于:所述防冻液选用乙二醇防冻液、无水防冻液、全有机防冻液其中的一种。
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