6,000 이상을 완료 한 후 맞춤형 리튬 배터리 팩 프로젝트, 우리는 고객에게 종종 구체적인 질문이 있음을 발견했습니다. 이 기사에서는 우리는 리튬 이온 배터리 팩 설계 및 생산.
맞춤형 리튬 이온 배터리 팩을 선택할 때 고려해야 할 주요 요소는 무엇입니까?
맞춤형 리튬 이온 배터리 팩을 선택할 때 몇 가지 주요 요소를 고려해야합니다.
먼저, 에너지 밀도 고객이 종종 휴대용 응용 프로그램을위한 리튬 이온 배터리를 찾아 소모적이고 가벼운 설계에서 높은 에너지 용량을 원하기 때문에 중요한 역할을합니다.
또한 배출 속도를 고려해야합니다. 리튬 이온 세포의 두 가지 주요 유형이 있습니다 – energy cells and power cells. Energy cells offer high energy density but lower current delivery, resulting in longer runtime, while power cells provide rapid high current output with lower energy density.
Cycle life is another critical aspect to consider. Lithium-ion phosphate cells, despite potentially being heavier, can deliver over 3,000 cycles, surpassing the 500-600 cycles of other types.
Safety is paramount for all lithium-ion batteries, with lithium-ion phosphate cells known for their enhanced robustness in terms of safety features.
Furthermore, temperature tolerance is an important consideration. Although lithium batteries were previously limited in high-temperature applications, advancements now enable their use in various settings with elevated temperatures.
How Can Thermal Management Be Integrated Into A Custom Lithium Pack?
A larger enclosure often dissipates heat better, and we sometimes add heat spreaders in packs to manage excess heat.
Tesla’s approach to active cooling sets a high standard in the industry, using liquid circulation around individual cells to maintain uniform temperatures and eliminate thermal gradients. This advanced system ensures internal cells match the temperature of external cells, even enabling preheating on cold days for improved efficiency and longevity.
If budget constraints limit cooling options, leveraging temperature sensors can be a cost-effective solution. These sensors can monitor temperature variations and adjust the device’s operation accordingly, such as throttling the processor or adjusting motor speed to prevent overheating.
Additionally, implementing warning systems within the battery pack can help alert users to potential temperature issues and take preventive measures effectively.
What Less Common Safety Features Should Be Included In A Custom Lithium Battery?
Second-tier and third-tier safety features often go unnoticed, but one important aspect is 셀 밸런싱.
Many people see it as a cycle life feature, similar to evenly filling an ice cube tray to ensure all cells maintain equal levels. This balance extends the pack’s lifespan and prevents individual cells from falling too low or rising too high, which can trigger safety circuits and reduce runtime perception.
Additionally, if safety circuits malfunction, continuous low or high excursions can lead to dendrite growth or issues with separating materials, potentially causing internal shorts. Thus, cell balancing is indeed a safety feature.
Other considerations include encapsulating batteries with effective pressure relief valves. It can help mitigate the risk of overpressure within the battery pack, especially during rapid charging or in case of a malfunction.
Finally, using flame-retardant materials rated for high temperatures ensures that 구성 요소 don’t ignite during failure situations. These lesser-known safety features play a crucial role in battery performance and reliability.
Do Most End-product Standards Require Batteries To Meet Specific Standards?
Yes, most end-product standards mandate that batteries meet specific safety, performance, and quality criteria to ensure consumer safety and product reliability. Regulatory bodies enforce these standards to mitigate risks like fire hazards, 열 폭주, and environmental impact.
Key standards include:
- 그리고 38.3: Covers testing requirements for the safe transport of lithium batteries.
- IEC 62133: Specifies safety requirements for lithium ion batteries in portable electronic devices.
- IEC 62619 : 산업 응용 분야에서 2 차 리튬 이온 세포 및 배터리의 안전성에 중점을 둡니다.
- UL1642 및 UL 2054 : 가정 및 산업용 리튬 배터리에 대한 안전 표준.
- CE 마킹 : EU 안전 표준에 따른 적합성을 나타냅니다.
리콜, 법적 부채 및 브랜드 평판 손상을 방지하기 위해서는 규정 준수가 필요합니다. 제조업체는 안전한 배터리 구동 제품을 제공하기 위해 이러한 표준을 준수해야합니다.
사내 제조를 위해 온라인으로 셀을 찾는 권장 사항이 있습니까? 내 요구 사항을 충족하는 옵션을 찾기 위해 Google을 사용하는 것만 큼 간단합니까?
Google은 출발점이 될 수 있지만 신뢰할 수있는 셀 공급 업체를 찾는 권장 사항은 다음과 같습니다.
- 파트너 고품질 배터리 셀로 알려진 평판이 좋은 공급 업체 신뢰할 수있는 지원.
- Confirm clear specifications, including voltage, capacity, energy density, 사이클 수명, size, weight, and safety features to narrow your search.
- Ensure compatibility with your system by considering mechanical fit, electrical connections, and charging/discharging protocols to avoid integration issues during manufacturing.
- Choose cells that meet recognized industry standards like UL or IEC for safety and performance; review product datasheets or test reports from the supplier.
- Consult industry experts, engineers, or consultants experienced in sourcing battery cells for manufacturing. They can guide you in selecting the right cells for your specific needs.
- Evaluate shipping logistics regarding options, lead times, costs, and delivery requirements.
How Do You Determine A Product’s Cycle Life?
Generally, determining a battery’s cycle life involves several methods:
- Manufacturer Specifications: Check the manufacturer’s estimated cycle life, which is often based on standardized testing. However, these values typically reflect low steady-state currents.
- Accelerated Aging Tests: Conduct tests in controlled conditions by repeatedly charging and discharging the battery while monitoring performance and capacity decline. This method estimates how many cycles the battery can endure before reaching a specific capacity threshold (e. g., 80% of original capacity).
- Past Data and Experience: Historical data on similar batteries can provide insights into expected cycle life through industry research and case studies, though this method offers rough estimations.
- Battery Chemistry and Design: Different chemistries have varying cycle life characteristics; understanding these along with design factors like electrode materials can give rough estimates of performance.
- Operational Conditions: Factors such as discharge rate, depth of discharge (DOD), charging protocols, and environmental conditions significantly influence cycle life.
While these methods provide rough estimates, actual testing tailored to specific conditions is the most reliable way to determine a battery’s cycle life, particularly for outdoor products subject to temperature extremes.
