Hot Selling Energy Storage System

Advantages of cylindrical lithium batteries:

With the continuous improvement of market demand and people's living standards, electronic products have become an indispensable part of people's daily lives. Whether it is mobile phones, laptops or game consoles, electronic products need to use batteries as power sources. Cylindrical lithium batteries have become the first choice for power sources of many electronic products due to their good performance. The following will introduce them from several aspects.

1. High safety performance

Compared with other types of batteries, cylindrical lithium batteries have obvious advantages in safety. It uses high-quality battery materials, has high thermal stability and anti-puncture resistance, and can effectively avoid excessive heating during charging and discharging, thereby avoiding fire accidents caused by overheating of the battery. In addition, during the charging and discharging process, the cylindrical lithium battery is also equipped with an overcharge and over-discharge protection circuit, which effectively avoids the situation of overcharge and over-discharge damage to the battery.

In addition, due to the relatively small size of cylindrical lithium batteries and the simple manufacturing process, each link can be controlled more finely during the production process, thereby greatly improving the quality and safety performance of the battery.

2. High energy density

Cylindrical lithium batteries perform very well in terms of energy density, with the energy density of each unit reaching more than 200Wh/kg. Compared with some other types of batteries, cylindrical lithium batteries have higher energy storage density, which means that with the same volume, they can store more electricity for a longer time, and at the same time provide stronger power support for electronic products.

3. Long life

Cylindrical lithium batteries are made of high-quality materials, and the chemical reactions produced during charging and discharging are relatively stable, and it is not easy to decay the power. Therefore, cylindrical lithium batteries have a long service life, which means that under normal use, it is almost unnecessary to replace the battery. In addition, cylindrical lithium batteries can also be deeply charged and discharged during use, avoiding damage caused by frequent charging and discharging of the battery.

4. Easy to carry

Cylindrical lithium batteries are small in size and light in weight, making them easy for users to carry and use. Whether you are in outdoor activities, traveling or going out to do business, you can carry cylindrical lithium batteries with you to provide timely power support for electronic devices.

5. Low cost

The structural design of cylindrical lithium batteries is relatively simple, and the manufacturing process is also relatively sophisticated, so the price in the market is relatively affordable. For consumers, the purchase cost is low and very practical.

6. Repeatable charge and discharge

Cylindrical lithium batteries use advanced battery cell technology. Each battery has a BMS (battery management system) and a protection board, so under normal use, it can be repeatedly charged and discharged. Especially for high-quality cylindrical lithium batteries, the replacement cycle can be longer, and users can reuse them more easily. Compared with non-rechargeable batteries, this has a more positive significance for reducing the environmental burden and also saves users a lot of economic costs.



The difference between cylindrical lithium batteries and other lithium batteries:

With the rapid development of modern technology, electronic devices are everywhere, and batteries have become one of the necessary accessories. Among the various forms of batteries, different types of batteries have different advantages and disadvantages. Next, we will focus on the characteristics of cylindrical lithium batteries and their similarities and differences with other batteries, as well as how they work in our electronic devices.

1. Appearance and capacity

Cylindrical lithium batteries are cylindrical in shape, with larger capacity than other types of batteries and faster charging time. Compared with square batteries and flat batteries, cylindrical lithium batteries are more suitable for more electronic products, and have higher power and capacity, which can increase the use time of electronic devices.

However, cylindrical lithium batteries are not suitable for all devices. Due to their large battery capacity, they are correspondingly heavier. In small devices, such as smart watches or alarm clocks, cylindrical lithium batteries that are too large may not be able to adapt. In some tablets or laptops, cylindrical lithium batteries can be used for extended use time.

2. Safety

Cylindrical lithium batteries have a relatively high safety index, so they are very popular in the market. The most notable feature of cylindrical lithium batteries is an aluminum shell or steel shell. The metal packaging prevents contamination and leakage and protects everything from the device to the user. In addition, the shell of cylindrical lithium batteries can also resist wear and tear, making the battery more durable and easy to carry.

However, just like other electronic products, cylindrical lithium batteries also have the risk of fire. Short circuits, over-discharge, overcharging, etc. can all lead to battery hazards. In addition, if used improperly, cylindrical lithium batteries may heat up and explode, so you must be vigilant during normal use.

3. Cost and ease of use

Cost is an issue that needs to be considered for each battery type. Cylindrical lithium batteries are relatively expensive to produce, as they require a durable metal outer skin and several small internal cells, which requires a high level of technology. Although the production cost may be higher than other battery types, cylindrical lithium batteries may be a more affordable option for a period of time due to their long service life.

For end users, cylindrical lithium batteries are also easier to use. People can use rechargeable cylindrical lithium batteries at any time, without having to record the date of full charge or discharge. In the vast majority of cases, cylindrical lithium batteries are used in various electronic devices and manufacturers without complex adjustments.

4. Environmental impact

In the context of today's growing environmental awareness, the environmental impact of cylindrical lithium batteries is also an issue that needs to be considered. The chemicals and metals in cylindrical lithium batteries can have an impact on the earth and our health. After use, discarded battery waste needs to be properly disposed of to avoid unnecessary pollution.

In addition, during the chip manufacturing process, due to the size and composition of the cylindrical lithium battery, it may also have some chemical diffusion leading to more waste liquid discharge problems.

5. Charging speed

The last key is the different charging speed. Cylindrical lithium batteries can be charged in a relatively short time, and conventional chargers can even complete charging in a few hours. In addition, using the latest charging technology, such as fast charging or wireless charging, can also further optimize the charging speed. Compared with other batteries, square batteries and flat batteries take much longer to charge and require the use of higher quality charging equipment.

On October 10, the first overseas EPC new energy project undertaken by PowerChina Hydropower Seventh Engineering Bureau, the 64MW Tanavan PV Power Station (T Station) and the 64MW Malagon East PV Power Station (M Station) under the T&M PV Power Station, completed the one-time reverse power commissioning, marking that the project is about to be connected to the grid and put into commercial operation.

Since October 1, the Tanavan PV Power Station has taken the lead in starting the reverse power commissioning; On October 10, the Malagon East PV Power Station started the reverse power commissioning. To ensure the success of the commissioning, all members of the project department stick to their posts, go all out to carry out rectification and rectification, and complete the reverse power work with high quality, which is highly praised by the owner.

So far, all 7 sites of the Tanavan PV Power Station have been connected to the grid, and a total of 400,000 kWh of clean energy electricity has been transmitted to the outside world, injecting strong momentum into local sustainable development. At the same time, the Malagon East PV Power Station is ready to start the site grid-connected power generation.

Excellent performance, customized for construction sites

The lithium titanate battery power system, with the unique rate characteristics and excellent low-temperature performance of lithium titanate materials, perfectly solves the problem of high-rate power demand that traditional batteries are difficult to cope with in the complex environment of construction sites. The system is designed for heavy-duty electrical equipment on construction sites, and can provide strong support for both the instantaneous high power demand when the equipment is started and the stable power supply during continuous operation. Its unique voltage stabilization and frequency modulation functions effectively reduce the impact of power fluctuations on equipment performance, ensure the smooth and safe operation of the equipment, and greatly improve work efficiency and service life.

Technological innovation leads the industry trend

The core advantage of the lithium titanate battery power system lies in the high-performance lithium titanate material it uses. Compared with traditional battery materials, lithium titanate has higher safety, longer cycle life and a wider temperature adaptability range, which means that even in extreme environments such as extreme cold or high temperature, the system can still work stably and provide uninterrupted power guarantee for construction site operations. Its excellent rate performance enables the system to respond quickly and meet the high power demand of the equipment in a short period of time, bringing unprecedented convenience and efficiency to construction sites.

Smooth delivery, opening the future chapter

At present, after strict quality inspection and performance testing, the 789.6V 28Ah lithium titanate battery power system has been successfully delivered and officially entered the on-site commissioning stage, ensuring that the system is highly matched with the construction site operating environment and performs optimally. The successful launch of the lithium titanate battery power system is not only a reflection of the innovation in the application of Lishen super-electric technology, but also an important contribution to global construction site energy solutions.

With the excellent performance and reliable quality of its products, Lishen Battery brings safer, more efficient and greener energy support to construction site operations, helping to open a new chapter in the use of construction site energy.

18650 battery definition

18650 battery is a common lithium battery model. Its name comes from the size of the battery, where "18" represents the battery diameter of 18mm, "65" represents the battery height of 65mm, and "0" represents the battery is cylindrical. This battery was originally invented by Panasonic Corporation of Japan and is now widely used in various portable electronic devices, such as flashlights, electric toys, portable electronic devices, and 18650 battery packs are used in some two-wheeled and three-wheeled electric vehicles.



Advantages and disadvantages of 18650 batteries:

Advantages:

1. High energy: 18650 batteries store more power in a smaller volume, providing longer use time for portable electronics.

2. High power: 18650 batteries are able to provide large currents in a short period of time, suitable for applications that require fast charging and high power output.

3. High safety: The built-in BMS (battery management system) of 18650 batteries adopts a variety of safety designs to prevent battery short circuits, overcharging, and over-discharging.

4. Long life: 18650 batteries usually have a long cycle life and can still maintain a high capacity after multiple charge and discharge cycles, which is crucial to extend the service life of the device.

5. Low self-discharge rate: This means that less power is lost during storage, which is conducive to maintaining the long-term storage performance of the battery.

6. Wide operating temperature range: 18650 cells operate in an environment of -20℃~+60℃, which makes them suitable for a variety of environmental conditions.

7. Standardized models: The size and interface of 18650 batteries are standardized, users can easily replace batteries, and there are many suppliers on the market with transparent prices.



Disadvantages:

1. Limited capacity of a single cell: The capacity of a single 18650 battery is usually between 2000mAh and 3500mAh. For devices that require more power, multiple batteries need to be used in series or parallel, which may increase the volume and weight.

2. Internal resistance increases over time: As the number of charge and discharge times increases, the internal resistance of the 18650 battery will gradually increase, resulting in weakened battery performance and reduced battery life.

3. There are safety risks: If the battery is mechanically damaged, overcharged, over-discharged or short-circuited, it may cause the battery to overheat or even catch fire, especially in uncertified battery products.

4. Correct charge and discharge management is required: In order to ensure the performance and safety of 18650 batteries, appropriate charge and discharge management circuits are required, which will increase equipment and complexity and cost.

5. Environmental treatment issues: 18650 batteries of different materials contain harmful substances, such as cobalt, manganese, nickel, etc., which need to be specially treated before they can be recycled, otherwise they will pollute the environment.

How Humidity Impacts Lithium Battery Performance
Author: Huawen New Power Technical Team

Humidity plays a critical role in the long-term performance and safety of lithium batteries. Excessive moisture can degrade the internal components, accelerate corrosion, and lead to reduced lifespan or failure. Understanding how humidity affects battery chemistry is essential for both storage and operation, especially in challenging environments.

1. Why Humidity Matters in Lithium Batteries
Lithium batteries contain electrolytes and materials that are highly sensitive to moisture. Even small amounts of water vapor can react with lithium salts, producing hydrofluoric acid (HF), which corrodes electrodes and separators.

⚠️ Note: High humidity not only affects performance but can also compromise safety by increasing internal short-circuit risks.

[Chart: Correlation Between Humidity Level (%) and Battery Capacity Retention]
Figure 1: Increased humidity leads to faster capacity degradation over time.

2. Main Effects of Humidity on Battery Performance



Humidity Condition
Impact on Battery
Consequence




Low Humidity (Below 30%)
Safe for storage; low corrosion risk
Stable performance and long cycle life


Moderate Humidity (30–60%)
Acceptable range for most applications
Minimal effect if sealed properly


High Humidity (Above 70%)
Accelerated electrolyte breakdown, metal oxidation
Capacity fade, higher internal resistance



3. How Humidity Affects Internal Resistance
Moisture infiltration increases internal resistance by degrading the conductive pathways between electrodes. This results in reduced efficiency, higher energy loss as heat, and slower charging times.


[Graph: Humidity vs. Internal Resistance Rise]
Figure 2: Internal resistance increases rapidly beyond 70% RH.

4. Humidity Control and Storage Recommendations
💡 Tips for Battery Storage:

Store batteries in an environment with relative humidity below 50%.
Use sealed packaging or moisture-proof pouches for long-term storage.
Include desiccant packets in packaging to absorb residual moisture.
Maintain stable temperature between 20°C to 25°C for optimal stability.


5. Huawen New Power’s Humidity-Resistant Battery Solutions
At Huawen New Power, our lithium battery packs are engineered with advanced sealing, high-quality electrolytes, and robust battery management systems (BMS) to ensure consistent performance in humid environments.


✔ IP-rated enclosures for outdoor and coastal applications
✔ Advanced moisture-resistant cell coatings
✔ Conformal coating on PCBs and BMS circuits
✔ Custom solutions for tropical, marine, or industrial use


[Illustration: Battery Pack Cross-Section Showing Moisture Protection Layers]
Figure 3: Huawen New Power's multi-layer moisture protection design.

6. Conclusion
Humidity can silently degrade lithium battery performance if not managed properly. By adopting moisture-resistant designs and correct storage conditions, battery lifespan and reliability can be significantly improved. Huawen New Power continues to innovate in protective technologies to ensure dependable power in all environments.


References:


Battery University, “How to Store Batteries Properly.”
Journal of Power Sources, Vol. 468, 2020: “Moisture Effects on Lithium-Ion Battery Degradation.”
Huawen New Power R&D Technical Reports (2024).