Blog

The Direction of Improvement of Electrolyte Filling Machines Feb 20 , 2023

The electrolyte filling process is a key part of lithium battery manufacturing, and the electrolyte filling weight directly affects the electrochemical performance and safety of the battery cells With the rapid development of lithium battery industry, battery manufacturers have higher and higher requirements for electrolyte filling accuracy, electrolyte filling machine stability and electrolyte fi...

Tags :

Battery Internal Resistance Test: ACIR and DCIR | Battery Testing Feb 06 , 2023

To measure the internal resistance of a battery, there are two methods, one is the AC method and the other is the DC method. The so-called ACIR is the value of internal resistance of the battery measured by AC method. The measurement principle of ACIR is that the measurement current is applied with a measurement frequency of 1 kHz and the internal resistance of the battery is calculated from the v...

Tags :

EV Battery System Self-discharge Performance Test | EV Battery Testing Jan 31 , 2023

The purpose of the battery self-discharge performance test is to verify the charge retention capability and charge recovery capability of EV battery systems under long-term standing conditions. At the same time, the voltage difference of the minimum monitoring units in the battery self-discharge performance test can be used as a basis for whether there is a hidden danger of internal short circuit ...

Tags :

EV Battery Start-Up Capability Testing | EV Battery Testing Dec 26 , 2022

The EV battery system start-up capability testing is mainly to verify the EV battery system start-up output power at low temperature and low SOC. The brief method of EV battery system start-up capability testing is as follows: perform a constant voltage discharge with a maximum current limit based on the maximum pulse discharge current specified by the battery cell manufacturer and collect the vol...

Tags :

Dry Electrode Manufacturing Process and Equipment Dec 05 , 2022

Dry electrode technology is a battery electrode manufacturing process without solvents, and both anode and cathode electrode preparation can be applied. The dry electrode process eliminates the solvent and also enhances the performance of the battery electrode, and simplifies the electrode preparation process with less equipment investment. Compared to wet electrode manufacturing, the process inno...

Tags :

EV Battery Energy Efficiency Testing | EV Battery Testing Nov 21 , 2022

The method of battery energy efficiency testing is different for different application scenarios. For high power application scenarios, battery energy efficiency testing will focus on verifying the recovery and utilization of high-rate regenerative energy by the EV battery system. For high-energy application scenarios, battery energy efficiency testing will focus on verifying the charging performa...

Tags :

EV Battery Power and Internal Resistance Testing | EV Battery Testing Nov 08 , 2022

EV battery power and internal resistance testing is mainly to test the available power and DC internal resistance of the battery system under different temperature environments. The relevant test standards are ISO 12405 and FreedomCAR. 1.Overview of testing under ISO 12405 ISO 12405 specifies that the power test and DC internal resistance test should be conducted at normal temperature, high temper...

Tags :

EV Battery Capacity and Energy Testing | EV Battery Testing Nov 01 , 2022

The electrical performance test of EV batteries mainly includes capacity and energy test, power and internal resistance test, energy efficiency test, start-up test, self-discharge test, charging test, cycle life test, etc. EV battery capacity and energy testing focuses on the available capacity and energy of EV battery systems under different conditions. The main influences on the capacity and ene...

Tags :

System Function Testing of EV Batteries | EV Battery Testing Oct 27 , 2022

The system function testing of EV batteries is mainly to verify the basic function and acquisition test of electric vehicle battery system. The electric vehicle battery system must be able to measure and monitor important parameters such as the voltage of the EV battery pack, the voltage of the minimum monitoring units, the system operating current, the system temperature, the insulation resistanc...

Tags :

Lithium-ion Battery Safety Testing | WinAck Group Oct 21 , 2022

Lithium-ion batteries are used in many scenarios, and there is no shortage of complex, changing and harsh environments. For example, some batteries need to operate over an extremely wide temperature range, some need to operate under sustained vibration, some need to operate under high-rate charge/discharge conditions, etc. However, Li-ion battery is a hermetically sealed body containing both oxidi...

Tags :