● About Gao Rui Power

As the research and development center of gaorui power supply materials co., ltd, gaorui power is located in Xiangjiang new district of Changsha city. it was established in June 2022 with a total investment of 30 million yuan and a laboratory area of 2200 ㎡. the proportion of research and development personnel with master's degree or above exceeds 27% and bachelor's degree or above 86.0. As a new energy comprehensive research and development platform, it is mainly engaged in the research and development of new lithium battery materials, new processes and new technologies, and provides small-scale and pilot scale-up production services, and is committed to building an open incubation base for new energy technologies.

The external services that can be provided include lithium battery scheme design, soft-pack battery sample preparation, new material verification, material physical and chemical performance characterization, battery performance & safety testing, battery or material failure analysis.

● Core advantages

1. Perfect sample preparation and testing resources: 5% low humidity environmental control, which can meet the development requirements of NCM/LFP lithium ion batteries, solid-state batteries, sodium ion batteries and other different system products; A complete set of lithium battery sample preparation equipment can be used to prepare samples of 1-5Ah soft-pack batteries of different specifications. High and low temperature box, charging and discharging motor, safety test box to meet the lithium battery electrical performance and safety performance test requirements.

2. Professional service team: All members have research and development backgrounds in lithium batteries, materials, electrochemistry, etc. They can output customized lithium battery design solutions such as positive and negative electrode formulations and electrolyte formulations according to customer needs, as well as provide failure/reverse analysis services for batteries and materials.

 

 

Services we provide

1. Lithium battery sample preparation:
 

① Battery new technology, new technology small test and pilot scale-up production services.

The manufacturability evaluation of materials or batteries: including slurry dispersion, slurry stability, diaphragm resistance, peeling force, cohesion and other key process data collection and report output.

2. Lithium battery electrical performance test

① Rate discharge, high and low temperature discharge, cycling and other regular electrical performance test.

② Impedance spectroscopy (EIS), cyclic voltammetry, three electrodes, ionic conductivity and other mechanism analysis and testing.

3. Lithium battery design & failure analysis

① Provide lithium battery related design solutions, including: positive and negative electrode formula & process design, electrolyte formula, electrochemical system design (materials, structure, process, etc.).

② Provide failure analysis for batteries or new materials, as well as competitive benchmarking services.

4. Characterization of physical and chemical properties of materials

With DSC, ICP, infrared spectroscopy, specific surface area and particle size analyzer and other precision equipment, and can provide professional detection and analysis reports.

 

Equipment display

 

 

Lithium battery sample preparation

 

Comprehensive manufacturability evaluation of materials or batteries: key process data collection and reporting outputs including paste dispersion, paste stability, film resistance, peel force, cohesion, etc.

 

 

Figure 1. Fluidity of slurry

 

 

 

Figure 2. Slurry fineness

 

 

Figure 3. Peel force test

 

 

Figure 4. Diaphragm resistance test

 

 

Lithium battery electrical performance test

 

1. Rate discharge, high and low temperature discharge, cycling, high temperature storage and other regular electrical performance tests.
 

 

 

Figure 5. Short-term performance test

 

 

Figure 6. Long-term performance test

2. Impedance spectroscopy (EIS), cyclic voltammetry, three-electrode, ionic conductivity, mechanism analysis and testing.
 

 

 

Figure 7. Mechanism analysis

 

Lithium Battery Solutions

We can provide professional lithium battery related solutions, including:
 

1. Positive and negative electrode formula & process

2. Electrolyte formula

3. Electrochemical system design (material, structure, process, etc.)

 

Example: Negative Electrode Formulation & Process recommend

 

 

Figure 8. Negative electrode stirring process

 

 

failure analysis

Failure analysis for batteries or new materials

 

 

Figure 9. Example: LEP system cycle failure analysis    

 

New material performance analysis

 

For new materials, provide benchmarking analysis to better guide the direction of subsequent material development.

 

 

     Figure 10, Example: Performance of a Negative Material