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Preparation method of solid electrolyte
The invention relates to the field of batteries, in particular to a preparation method of a solid electrolyte, which comprises the following steps: S1, adding a lithium salt solution with the concentration of 1-3mol/L into electrolyte powder for wetting, and grinding until the particle size of electrolyte powder particles is 10 [mu]m; S2, heating the wet electrolyte ground in the step S1 to 140-160 DEG C at a heating rate of 8-15 DEG C/min under a pressure of 450-600 MPa, and then carrying out heat preservation for 100-150 min; and S3, after heat preservation in the step S2 is finished, conducting cooling to room temperature to obtain the solid electrolyte. A sintering temperature is low in the invention, so the problem of element volatilization in a high-temperature sintering process is effectively avoided; and the method is simple in process, convenient to operate, low in cost and short in consumed time. By using the prepared solid electrolyte, the energy density of a battery can beremarkably improved. A solid-state lithium ion battery prepared on the basis of the method is good in performance and suitable for various energy storage devices.
本发明涉及电池领域，具体涉及一种固态电解质的制备方法，包括以下步骤：S1.在电解质粉末中加入浓度为1～3mol/L的锂盐溶液湿润，并研磨至电解质粉末颗粒的粒径为10μm；S2.将步骤S1研磨之后的湿润的电解质，在450～600MPa的压力下，以8～15℃/min的升温速率，升温至140～160℃，然后保温100～150min；S3.步骤S2保温结束之后，冷却至室温，即得到固态电解质。本发明烧结温度低，有效避免了高温烧结过程带来的元素挥发问题；工艺流程简单，操作方便，成本低，耗时短；通过使用制备的固态电解质，可以显著提高电池的能量密度。基于此方法制备的固态锂离子电池性能良好，适用于各种储能设备。
Preparation method of solid electrolyte
The invention relates to the field of batteries, in particular to a preparation method of a solid electrolyte, which comprises the following steps: S1, adding a lithium salt solution with the concentration of 1-3mol/L into electrolyte powder for wetting, and grinding until the particle size of electrolyte powder particles is 10 [mu]m; S2, heating the wet electrolyte ground in the step S1 to 140-160 DEG C at a heating rate of 8-15 DEG C/min under a pressure of 450-600 MPa, and then carrying out heat preservation for 100-150 min; and S3, after heat preservation in the step S2 is finished, conducting cooling to room temperature to obtain the solid electrolyte. A sintering temperature is low in the invention, so the problem of element volatilization in a high-temperature sintering process is effectively avoided; and the method is simple in process, convenient to operate, low in cost and short in consumed time. By using the prepared solid electrolyte, the energy density of a battery can beremarkably improved. A solid-state lithium ion battery prepared on the basis of the method is good in performance and suitable for various energy storage devices.
本发明涉及电池领域，具体涉及一种固态电解质的制备方法，包括以下步骤：S1.在电解质粉末中加入浓度为1～3mol/L的锂盐溶液湿润，并研磨至电解质粉末颗粒的粒径为10μm；S2.将步骤S1研磨之后的湿润的电解质，在450～600MPa的压力下，以8～15℃/min的升温速率，升温至140～160℃，然后保温100～150min；S3.步骤S2保温结束之后，冷却至室温，即得到固态电解质。本发明烧结温度低，有效避免了高温烧结过程带来的元素挥发问题；工艺流程简单，操作方便，成本低，耗时短；通过使用制备的固态电解质，可以显著提高电池的能量密度。基于此方法制备的固态锂离子电池性能良好，适用于各种储能设备。
Preparation method of solid electrolyte
一种固态电解质的制备方法
LU XIA (author) / JIANG PENGFENG (author)
2020-11-17
Patent
Electronic Resource
Chinese
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