川源科技 ACCFILM 浆料电阻测试系统

在锂离子电池生产制造中，将液体介质与正负极活性材料、导电剂、粘结剂混合均匀，得到电池浆料，然后涂布在集流体上，利用干燥烘烤等除去溶剂(水或NMP)，毫无疑问作为锂电池生产的第一道工序，匀浆配料是重中之重，是一切性能的基础。

In the manufacture of lithium-ion battery production, with liquid medium is the positive and negative active materials, conductive agent, binder are mixed evenly to get the battery slurry, and then coated on the fluid collector, using drying and baking to remove the solvent (NMP) or water, there is no doubt that as the first step of lithium-ion battery production,homogenate ingredients are the most important and the basis of all performance.

而浆料的各项特性参数又是表征或衡量浆料的基础，而浆料电导性又是决定电芯导电性的重要参数，所以找到一种测量浆料电导性及稳定性的方法及仪器非常重要。

And the characteristic parameters of slurry is the basis of characterization or measurement of slurry, and the conductivity of slurry is an important parameter to determine the conductivity of the cell, so it is very important to find a method and instrument to measure the conductivity and stability of slurry.

 浆料电阻测量在浆料快速评估、品质监控等过程中发挥以下作用：

Measurement of slurry resistance plays the following roles in the process of slurry rapid evaluation and quality monitoring：

1. 综合评估不同搅拌工艺对胶料电导率（包括分散性、沉降等）影响；

The influence of different stirring processes on the conductivity (including dispersion settlement, etc.) of the compound was comprehensively evaluated

2. 针对生产过程中浆料批次稳定性的评估；

Evaluation of batch stability of slurry during production

3. 针对不同配方浆料导电性评估；

Conductivity evaluation of different slurry formulations;

 浆料电导率测量原理

Principle of slurry conductivity measurement

                                                               电阻率,Resistivity，

测量方法：将准备的的浆料导入干净的电极测试杯中（盖过测试杯指示线）或直接将测试电极笔放入浆料量杯中，开启软件，选择对应的测试模式，开始测试，数据将自动保存；

Measurement method: Put the prepared slurry into a clean electrode test cup (over the indicator line of the test cup) or directly put the test electrode pen into the slurry measuring cup, open the software, select the corresponding test mode, start the test, and the data will be automatically saved;

测量参数：电导率、电导率、稳定系数、温度、时间

Measurement parameters:   conductivity, stability coefficient, temperature, time

产品特色

 MSA可靠性分析

MSA reliability analysis

ACCFILM浆料电阻测试仪测试为可再现性测试，测试通过标准样品进行测量可靠性分析；

ACCFILM slurry resistance tester test is reproducibility test, test through the standard sample measurement reliability analysis;

 应用领域与范围

Application field and scope

本测量系统适用于企业、高等院校、科研院所及分析检测机构、是检验对电池及半导体材料的浆料电导率及其稳定性进行测量，其主要输出测量测试如下：

The measurement system is suitable for enterprises, universities, research institutes and analysis and testing institutions, is to test the battery and semiconductor material slurry conductivity and stability measurement, its main output measurement test is as follows:

 输出测量参数（VS.传统四探针）

Output measurement parameters (vs. conventional four-probe)

 行业应用情况

Industry Application

基于自营与合作的营销及服务模式，ACCFILM系列产品自2016年完成首发后，已服务近100家客户，在2020年实现为市场出货前十的企业中其中7家提供产品服务， “ACCFILM”品牌已经成为新能源动力电池细分领域的代名词。

Based on the marketing and service mode of self-operation and cooperation, ACCFILM series products had served nearly 100 customers since the global debut in 2016. In 2020, ACCFILM had provided products and services for 7 of the top 10 companies in the global market. "ACCFILM" brand had become synonymous with the new energy power battery segment.

 应用案例

application case

1.负极浆料中应用的稳定性评估

Stability evaluation for applications in negative slurry

不同CMC（浆料稳定剂）应用于石墨负极配方中，将影响浆料的沉降性能（稳定性），通过监控浆料的电导率测量变化，可判定评价原材料的应用效果；

Different CMC (slurry stabilizer) applied to graphite anode formula will affect the settling property (stability) of slurry. The application effect of raw materials can be evaluated by monitoring the conductivity measurement changes of slurry.

应用：材料筛选评价、稳定性监控

Application: material screening evaluation, stability monitoring

浆料配方简要说明：石墨95.3%，CMC2或CMC1 1.3%，SBR1.9%,SP 1.5%;

Formulation of slurry: graphite 95.3%, CMC2 or CMC1 1.3%, SBR1.9%,SP 1.5%;

2. 不同黏度（稀释）浆料电阻率评估

Resistivity evaluation of slurry with different viscosity (dilution)

对于实验应用案例1的浆料进行稀释，稀释前后浆料的电阻率明显增大，导电性能降低，为后续浆料开发提供新的测量参数。

After diluting the slurry of experimental application case 1, the resistivity of the slurry increased significantly and the conductivity decreased, providing new measurement parameters for the subsequent slurry development.

3. 不同保存时间浆料电阻率评估

Resistivity evaluation of slurry with different storage time

对于负极浆料进行不同时间存储后，与新鲜浆料对比，原浆料出现明显的沉降（具体效果如图3）；对两个浆料的电阻情况进行测试，具体结果如表：

For the negative slurry stored for different time, compared with the fresh slurry, the original slurry has obvious settlement (see Figure 3). The resistance of the two pastes was tested. The specific results are shown in the table:

4. 客户提供数据案例

Customer provides data case

某客户对于其某款浆料进行稀释实验的数据，其稀释倍数与电导率成等比例线性关系；

A customer for its a slurry dilution test data, the dilution ratio and conductivity into equal proportion linear relationship;

具体结果如右图数据曲线：

Specific results are shown in the data curve on the right:

5.不同固含量浆料电导率

Conductivity of slurry with different solid content

通过浆料电导率测试可实现特定配方的适合固含量的判定；

The determination of suitable solid content of a specific formula can be realized through the test of slurry conductivity.

 系统参数

system parameter