الخطة الخمسية الخامسة عشرة للصين: توسيع سوق بطاريات الليثيوم لأنظمة النسخ الاحتياطي

China's 15th Five-Year Plan period covers 2026–2030. Stronger grids coupled with renewable energy sources (RES) and flexible resources form the basis of an efficient and secure modern energy system. Upgraded infrastructure will support this. China intends to achieve substantial advancement in this respect towards this goal of a novel energy system by 2030.

China's focus encompasses more than just adding RES capacity to the energy mix. Technological advancements allow for changes not only in the generation of electricity, but also in the distribution, balancing, and protection of electricity. With the decentralization of power systems, the Lithium Battery for Backup Systems is able to connect renewable generation and critical loads to provide local power resilience.

The Need for Flexible Backup Power in the New Energy System

Renewable generation is intermittent, whereas the majority of electricity end users (e.g., factories, offices, hospitals, etc.) require stable power. China's advancement on its renewable energy systems has created a demand for flexible support and stronger grids along with an increased demand for local energy resilience.

Some driving forces for demand of Lithium Battery for Backup Systems could be:

•   Greater Penetration of Renewables: Although an increase of Renewable Energy Sources (RES) does not remove the need for balancing, battery systems can offer the required flexible support.

•   Increased Distributed Generation: Local energy systems require nearby generation and storage.

•   Greater Demand for Supply: Certain systems need an energy supply during a disruption in the grid.

•   New Electricity Markets: New market structures may stimulate the development of more flexible systems.

•   Increased Demand for Supply: Local systems can support the grid during extreme weather events.

لماذا اختر LiFePO4 for Backup Systems

The design of LiFePO4 cells for stationary storage fits well for applications requiring support of many charge/discharge cycles along with long periods of standing by. Performance is still dependent on cell quality, thermal management, and BMS (battery management system) and housing design and installation.

•   Thermal Stability: Of the different lithium-ion chemistries, LiFePO4 is considered the most thermally stable.

•   Cycle performance: Repeated charging and discharging can support backup, peak shaving, and solar self-consumption.

•   Usable energy: A properly configured system can provide relatively high usable depth of discharge compared with many lead-acid arrangements.

•   BMS protection: A battery management system can monitor voltage, current, temperature, state of charge, and abnormal conditions.

• Modular integration: A Lithium Battery for Backup Systems can serve small communication loads, homes, or larger commercial installations.

Where LiFePO4 Backup Demand May Develop

Backup Power Is Becoming a System-Level Decision

Selecting a Lithium Battery for Backup Systems should not be based only on rated capacity.

•   Critical-load profile: Determine duration of sustained power for specific devices.

•   Inverter specifications: Ensure similar voltage ratings, discharge currents, communication protocols, and surge specifications.

•   Duration of backup: While considering the efficiencies of the inverter and wires, along with ambient temperature, estimate the available energy after the depth of discharge.

•   Installation site: Evaluate the ventilation, fire safety, access for services, and the protection class of the enclosure in regard to the ambient temperature.

•   Control strategy: Specify if the battery will be dedicated to backup power or if the battery will also be used to enable solar and backup regulation for tariff control.

•   Lifecycle planning: Evaluate anticipated cycling, warranty terms, replacement policy, and total cost of ownership.

سانديسولار'S Backup Battery Design Philosophy

SANDISOLAR develops residential, commercial, solar, mobile, and off-grid applications of LiFePO₄ Batteries. The company evaluates the battery's performance within the entire energy system, instead of focusing on the amp-hour rating.

Fundamental Design Principles:

•   Equilibrium: Voltage between battery cells is maintained throughout a single energy system.

•   Integrated Battery Management System (BMS): A BMS allows for the monitoring and control of the system's voltage, current, temperature, and status.

•   Circuit protection: Protective functions control overcharge, over-discharge, overcurrent, short circuits, and excessive abnormal temperatures.

•   Practical enclosure design: Simplistic design for accessibility and placement of terminals of the battery.

•   Production testing: Quality control inspections and testing of batteries at the end of line ensure high quality of each battery produced.

Aim of these principles is to ease the configuration and predict the performance within the designed scope of operation for Lithium Battery for Backup Systems.

SD-25.6V300AH LiFePO₄ Battery Overview

ال SANDISOLAR SD-25.6V300AH is a substantial storage solution for those needing a large singular energy storage solution for their applications.

Key Technical Parameters

The SD-25.6V300AH has many useful system design advantages as a Lithium Battery for Backup Systems:

•   Large stored energy: The unit has the capability to store 7.68 kWh to supply some of the loads of a commercial or residential building during an outage.

•   Easier system design: A large capacity standalone unit may result in fewer battery modules, cables, and connection points.

•   Reduced operating current: The 25.6V architecture can help reduce the current and losses in cables compared to battery systems with lower voltage.

•   System capacity may be expanded through parallel connections of individual battery units designed to accommodate such connections based on system design and BMS configuration.

Integrated BMS performs continuous monitoring of the operating conditions of the unit.

No emissions or operating noise associated with fuel generators.

Outlook

The 15th Five-Year Plan will likely result in more widely utilized renewable generation, distributed energy resources, and energy storage systems. As demand for these systems grows, large modular Lithium Batteries for Backup Systems will likely be needed.

SANDISOLAR SD-25.6V300AH is an example of a LiFePO₄ battery which can maximize the benefits of renewables and reduce the disruptive effects of outages and aid the management of local energy services. Their benefits are related to the storage capacity and the right sizing of the entire system, the quality of the design and installation, the inverter compatibility, and the operating conditions.

الأسئلة الشائعة

Q1. What are Lithium Batteries for Backup Systems?

These batteries store energy and release it during power outages.

Q2. Why use LiFePO₄ for backup systems?

LiFePO₄ is the most stable, has the longest cycle and is thermally the most stable.

Q3. Will Lithium Batteries for Backup Systems let you use power from your solar panels?

Absolutely. Lithium batteries will let you store excess solar power for the night and even for emergencies.

Q4. How long can my emergency power supply unit run on a backup lithium battery?

Runtime is determined by many factors including: battery capacity, the power of the load, inverter efficiency, and depth of discharge.

Q5. Is it possible to add more batteries to a backup battery system?

Many battery systems are designed for parallel battery expansion, assuming the inverter and BMS are designed for system expansion.