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Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
source:Industry News release time:2024-09-24 Hits: Popular:AG11 battery
The basic principle of lithium battery capacity:
1. Working principle of lithium battery: Lithium batteries store and release electrical energy through the insertion and extraction of lithium ions between the positive and negative electrodes.
2. The determining factors of capacity include the specific capacity of the electrode material, the effective surface area of the electrode, and the diffusion rate of lithium ions in the electrode.
Strategies for increasing the capacity of lithium batteries
1. Material improvement:
01. Positive electrode material: high nickel ternary material: has a high specific capacity, but there are safety and stability issues. Rich lithium manganese based materials: high specific capacity, but cycling performance needs improvement.
02. Negative electrode material: silicon-based material: theoretical specific capacity is high, but volume expansion is severe. Metal lithium negative electrode: has extremely high theoretical specific capacity, but there are problems such as dendrite growth.
2. Optimization of electrode structure:
01. Nanostructured electrodes: Structures such as nanowires and nanotubes increase the contact area between the electrode and the electrolyte, shortening the diffusion path of lithium ions. However, the preparation cost of nanomaterials is relatively high and there is a problem of agglomeration.
02. Three dimensional electrode: Construct a three-dimensional porous structure to increase the electrode's loading capacity and ion transport rate. The preparation process is relatively complex.
3. Improvement of battery manufacturing process:
01. Coating process improvement: Optimize the thickness and uniformity of the coating, and improve the consistency of the electrode.
02. Electrolyte injection process: Ensure that the electrolyte fully infiltrates the electrode and reduces dead zones.
4. Improvement of Battery Management System (BMS):
01. Accurate battery monitoring: Advanced algorithms and sensors are used to accurately estimate the remaining capacity of the battery.
02. Balanced management: Solve the inconsistency of individual cells in the battery pack and fully utilize the capacity of the battery pack.
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