A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-supporting ceramic diaphragm, and preparation method and application thereof
The invention discloses a self-supporting ceramic diaphragm, and a preparation method and application thereof. The preparation method comprises the following steps: ball-milling ceramic powder, a dispersing agent and a solvent to obtain slurry 1, adding a binder and a plasticizer into the slurry 1, and conducting ball-milling to obtain slurry 2; preparing a green body of a ceramic membrane from the slurry 2 through a tape casting machine, carrying out laser cutting on the green body to respectively obtain a green body of a ceramic diaphragm layer and a green body of an auxiliary support layer,and engraving the green body of the auxiliary support layer into a honeycomb or latticed frame structure through laser; and respectively adhering the green body of the auxiliary support layer to twosides of the green body of the ceramic diaphragm layer, flatly placing the bonded green bodies, fully fusing the green body of the auxiliary support layer and the green body of the ceramic diaphragm layer into an integral structure under the action of gravity, and sintering the integral structure at a high temperature of 1000-1700 DEG C to obtain the self-supporting ceramic diaphragm. According toa battery prepared from the self-supporting ceramic diaphragm, on the premise that the mechanical strength of the battery is effectively guaranteed, the thickness of an electrolyte functional layer is reduced to 100 microns or below, ohmic resistance is reduced by 47%, and output performance is improved by 60%.
本发明公开了一种自支撑型陶瓷隔膜及其制备方法与应用。本发明通过将陶瓷粉体、分散剂以及溶剂球磨得到浆料1，往浆料1中加入粘结剂及增塑剂球磨得到浆料2；将浆料2通过流延机器制得陶瓷膜生坯，将生坯通过激光切割后分别得到陶瓷隔膜层生坯和辅助支撑层生坯，再通过激光将辅助支撑层生坯本体雕刻为蜂窝或网格状的框架结构；再将辅助支撑层生坯分别粘接在陶瓷隔膜层生坯两侧，平置且在重力作用下，辅助支撑层生坯、陶瓷隔膜层生坯充分溶合成为整体结构，将该整体结构在1000～1700℃高温下烧结，得到自支撑型陶瓷隔膜。该自支撑型陶瓷隔膜制备的电池，在有效保证机械力学强度的前提下，电解质功能层厚度降低到100μm以下，欧姆电阻降低47％，输出性能提高60％。
Self-supporting ceramic diaphragm, and preparation method and application thereof
The invention discloses a self-supporting ceramic diaphragm, and a preparation method and application thereof. The preparation method comprises the following steps: ball-milling ceramic powder, a dispersing agent and a solvent to obtain slurry 1, adding a binder and a plasticizer into the slurry 1, and conducting ball-milling to obtain slurry 2; preparing a green body of a ceramic membrane from the slurry 2 through a tape casting machine, carrying out laser cutting on the green body to respectively obtain a green body of a ceramic diaphragm layer and a green body of an auxiliary support layer,and engraving the green body of the auxiliary support layer into a honeycomb or latticed frame structure through laser; and respectively adhering the green body of the auxiliary support layer to twosides of the green body of the ceramic diaphragm layer, flatly placing the bonded green bodies, fully fusing the green body of the auxiliary support layer and the green body of the ceramic diaphragm layer into an integral structure under the action of gravity, and sintering the integral structure at a high temperature of 1000-1700 DEG C to obtain the self-supporting ceramic diaphragm. According toa battery prepared from the self-supporting ceramic diaphragm, on the premise that the mechanical strength of the battery is effectively guaranteed, the thickness of an electrolyte functional layer is reduced to 100 microns or below, ohmic resistance is reduced by 47%, and output performance is improved by 60%.
本发明公开了一种自支撑型陶瓷隔膜及其制备方法与应用。本发明通过将陶瓷粉体、分散剂以及溶剂球磨得到浆料1，往浆料1中加入粘结剂及增塑剂球磨得到浆料2；将浆料2通过流延机器制得陶瓷膜生坯，将生坯通过激光切割后分别得到陶瓷隔膜层生坯和辅助支撑层生坯，再通过激光将辅助支撑层生坯本体雕刻为蜂窝或网格状的框架结构；再将辅助支撑层生坯分别粘接在陶瓷隔膜层生坯两侧，平置且在重力作用下，辅助支撑层生坯、陶瓷隔膜层生坯充分溶合成为整体结构，将该整体结构在1000～1700℃高温下烧结，得到自支撑型陶瓷隔膜。该自支撑型陶瓷隔膜制备的电池，在有效保证机械力学强度的前提下，电解质功能层厚度降低到100μm以下，欧姆电阻降低47％，输出性能提高60％。
Self-supporting ceramic diaphragm, and preparation method and application thereof
一种自支撑型陶瓷隔膜及其制备方法与应用
YU SHANCHENG (author) / CHEN LEYI (author) / WU XIAOBO (author) / MIN KANGLI (author) / GONG LIYING (author) / WU JIWEN (author) / ZHAO ZHIGANG (author) / CHEN GUOBING (author) / YE SHANSHAN (author)
2020-12-01
Patent
Electronic Resource
Chinese
Ceramic diaphragm as well as preparation method and application thereof
| European Patent Office | 2024
Preparation method of ceramic slurry, ceramic slurry, coated diaphragm and application
| European Patent Office | 2024
High-weather-resistance ceramic diaphragm tube and preparation method thereof
| European Patent Office | 2022
Modified ceramic material, preparation method of battery diaphragm, battery diaphragm and battery
| European Patent Office | 2023
Ultrafine aluminum oxide for lithium battery ceramic diaphragm and preparation method thereof
| European Patent Office | 2020