Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-capacity fast-charging graphite negative electrode material as well as preparation method and application thereof
The invention provides a high-capacity fast-charging graphite negative electrode material as well as a preparation method and application thereof. The graphite negative electrode material is obtained by sintering petroleum coke green coke and calcined coke, and the granularity of the calcined coke is less than or equal to that of the petroleum coke green coke. The graphite negative electrode material comprises the following raw materials: intermediate coke and first asphalt, wherein the intermediate coke is obtained by sintering green petroleum coke and calcined coke. According to the graphite negative electrode material provided by the invention, the calcined coke is added on the basis of the green petroleum coke and is sintered, so that the green coke is effectively prevented from being agglomerated in the sintering process, the sintering is more sufficient and uniform, the sintering time can be shortened, and the sintering capacity is effectively improved; and the capacity and the compaction density of the graphitized product of the green petroleum coke are also improved under the condition that the rate capability loss is relatively small.
本发明提供一种高容量快充石墨负极材料及其制备方法和用途。所述石墨负极材料由石油焦生焦与煅后焦经烧结后得到，所述煅后焦的颗粒度≤石油焦生焦的颗粒度。所述石墨负极材料的原料包括中间焦与第一沥青，所述中间焦由石油焦生焦与煅后焦经烧结后得到。本发明提供的石墨负极材料，通过在石油焦生焦的基础上加入煅后焦，并进行烧结，有效避免了生焦在烧结过程中发生团聚可使烧结更加充分、均匀，可以缩短烧结时间，有效提高烧结产能，使得石油焦生焦的石墨化产品在倍率性能损失较小的情况下，其容量和压实密度也得到提升。
High-capacity fast-charging graphite negative electrode material as well as preparation method and application thereof
The invention provides a high-capacity fast-charging graphite negative electrode material as well as a preparation method and application thereof. The graphite negative electrode material is obtained by sintering petroleum coke green coke and calcined coke, and the granularity of the calcined coke is less than or equal to that of the petroleum coke green coke. The graphite negative electrode material comprises the following raw materials: intermediate coke and first asphalt, wherein the intermediate coke is obtained by sintering green petroleum coke and calcined coke. According to the graphite negative electrode material provided by the invention, the calcined coke is added on the basis of the green petroleum coke and is sintered, so that the green coke is effectively prevented from being agglomerated in the sintering process, the sintering is more sufficient and uniform, the sintering time can be shortened, and the sintering capacity is effectively improved; and the capacity and the compaction density of the graphitized product of the green petroleum coke are also improved under the condition that the rate capability loss is relatively small.
本发明提供一种高容量快充石墨负极材料及其制备方法和用途。所述石墨负极材料由石油焦生焦与煅后焦经烧结后得到，所述煅后焦的颗粒度≤石油焦生焦的颗粒度。所述石墨负极材料的原料包括中间焦与第一沥青，所述中间焦由石油焦生焦与煅后焦经烧结后得到。本发明提供的石墨负极材料，通过在石油焦生焦的基础上加入煅后焦，并进行烧结，有效避免了生焦在烧结过程中发生团聚可使烧结更加充分、均匀，可以缩短烧结时间，有效提高烧结产能，使得石油焦生焦的石墨化产品在倍率性能损失较小的情况下，其容量和压实密度也得到提升。
High-capacity fast-charging graphite negative electrode material as well as preparation method and application thereof
一种高容量快充石墨负极材料及其制备方法和用途
GUO HAIDONG (Autor:in) / XU SHUAI (Autor:in) / SHE YINGQI (Autor:in)
15.12.2023
Patent
Elektronische Ressource
Chinesisch
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