一种电解液注液装置及注液系统

Abstract

本实用新型涉及电池制造技术领域，公开了一种电解液注液装置及注液系统，包括：电解液输送机构；温度采集机构，与电解液输送机构连接，用于实时获取电解液的当前温度；注液控制机构，与温度采集机构通信连接，用于根据电解液当前温度计算电解液当前注液量；以及注液机构，注液机构包括注液泵，注液泵用于将电解液当前注液量相应体积的电解液注入到待注液电池内部。本实用新型通过温度采集机构实时获取电解液的当前温度，通过注液控制机构根据电解液当前温度计算电解液当前注液量，通过注液机构将电解液当前注液量相应体积的电解液注入到待注液电池内部。通过实时监测电解液温度，根据温度差值动态补偿电解液注液量，从而提高注液量的稳定性。

Claims

1. An electrolyte injection device, characterized by comprising: include: Electrolyte delivery mechanism (10) for outputting electrolyte; A temperature acquisition mechanism (20) is set in the output direction of the electrolyte delivery mechanism (10) and connected to the electrolyte delivery mechanism (10) for real-time acquisition of the current temperature of the electrolyte; The liquid injection control mechanism (30) is connected in communication with the temperature acquisition mechanism (20) and is used to calculate the temperature difference between the current temperature of the electrolyte and the reference temperature of the electrolyte based on the current temperature of the electrolyte obtained by the temperature acquisition mechanism (20), and then calculate the liquid injection compensation value based on the temperature difference and the liquid injection volume temperature compensation coefficient, and then calculate the current liquid injection volume of the electrolyte based on the liquid injection compensation value and the reference liquid injection volume of the electrolyte. as well as The liquid injection mechanism (40) includes a liquid injection pump (41), which is located in the output direction of the electrolyte delivery mechanism (10). The liquid injection pump (41) is connected to the electrolyte delivery mechanism (10) and is communicatively connected to the liquid injection control mechanism (30). The liquid injection pump (41) is a volume pump and is used to inject a volume of electrolyte corresponding to the current liquid injection volume calculated by the liquid injection control mechanism (30) into the battery (50) to be injected.

2. The electrolyte injection device according to claim 1, wherein The electrolyte injection control mechanism (30) includes a calculation unit (31) and a control unit (32). The calculation unit (31) is communicatively connected to the temperature acquisition mechanism (20) and the control unit (32), respectively. The control unit (32) is communicatively connected to the electrolyte injection pump (41). The calculation unit (31) is used to calculate the current electrolyte injection volume based on the current electrolyte temperature obtained by the temperature acquisition mechanism (20) and send it to the control unit (32). The control unit (32) is used to control the electrolyte injection pump (41) to inject the electrolyte volume corresponding to the current electrolyte injection volume into the battery (50) to be injected.

3. The electrolyte injection apparatus according to claim 1, wherein The liquid injection mechanism (40) further includes a liquid injection cup (42), which is connected to the liquid injection pump (41). The liquid injection pump (41) is used to obtain electrolyte from the electrolyte delivery mechanism (10) and deliver electrolyte of the corresponding volume to the liquid injection cup (42). The liquid injection cup (42) is used to connect to the battery (50) to be injected and inject electrolyte into the battery (50).

4. The electrolyte injection apparatus according to claim 3, wherein The injection mechanism (40) further includes an injection transfer cup (43), which is disposed between the injection pump (41) and the injection cup (42). The injection pump (41) is connected to the injection transfer cup (43) through a first electrolyte delivery pipe (46), and the injection transfer cup (43) is connected to the injection cup (42) through an injection needle (44).

5. The electrolyte injection device according to claim 1, characterized in that, The electrolyte delivery mechanism (10) includes an electrolyte storage tank (11), an electrolyte impurity removal tank (12), and an electrolyte transfer tank (13). The electrolyte storage tank (11) and the electrolyte impurity removal tank (12) are connected to each other and the electrolyte impurity removal tank (12) and the electrolyte transfer tank (13) are connected to each other via a second electrolyte delivery pipe (14). The electrolyte transfer tank (13) is connected to the temperature acquisition mechanism (20) and the injection pump (41).

6. The electrolyte injection apparatus according to claim 5, wherein The electrolyte delivery mechanism (10) further includes an electrolyte filtration mechanism (15), which is disposed on a second electrolyte delivery pipe (14) between the electrolyte storage tank (11) and the electrolyte impurity removal tank (12) to filter the electrolyte output from the electrolyte storage tank (11).

7. The electrolyte injection apparatus according to claim 5, wherein The electrolyte delivery mechanism (10) further includes a vacuum mechanism (16), which is connected to the electrolyte impurity removal tank (12) to perform vacuum degassing on the electrolyte in the electrolyte impurity removal tank (12).

8. The electrolyte injection apparatus according to claim 5, wherein The electrolyte delivery mechanism (10) further includes a nitrogen generating mechanism (17), which is connected to the electrolyte storage tank (11) to provide positive pressure to the electrolyte storage tank (11).

9. The electrolyte injection apparatus according to claim 1, wherein The temperature acquisition mechanism (20) includes a temperature sensor or a temperature acquisition device.

10. An electrolyte injection system, characterized by comprising: The device includes the electrolyte injection device according to any one of claims 1-9, wherein the electrolyte injection device is connected to the battery (50) to be injected.

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