دانلود ترجمه مقاله ذخیره سازی باتری لیتیوم یون برای شبکه

Lithium-Ion Battery Storage for the Grid—A Review of Stationary Battery Storage System Design Tailored for Applications in Modern Power Grids

Abstract: Battery energy storage systems have gained increasing interest for serving grid support in various application tasks. In particular, systems based on lithium-ion batteries have evolved rapidly with a wide range of cell technologies and system architectures available on the market. On the application side, different tasks for storage deployment demand distinct properties of the storage system. This review aims to serve as a guideline for best choice of battery technology, system design and operation for lithium-ion based storage systems to match a specific system application. Starting with an overview to lithium-ion battery technologies and their characteristics with respect to performance and aging, the storage system design is analyzed in detail based on an evaluation of real-world projects. Typical storage system applications are grouped and classified with respect to the challenges posed to the battery system. Publicly available modeling tools for technical and economic analysis are presented. A brief analysis of optimization approaches aims to point out challenges and potential solution techniques for system sizing, positioning and dispatch operation. For all areas reviewed herein, expected improvements and possible future developments are highlighted. In order to extract the full potential of stationary battery storage systems and to enable increased profitability of systems, future research should aim to a holistic system level approach combining not only performance tuning on a battery cell level and careful analysis of the application requirements, but also consider a proper selection of storage sub-components as well as an optimized system operation strategy.

دانلود ترجمه مقاله شارژ باتری لیتیوم یون با استفاده از سلول خورشیدی پروسکایت

Efficiently photo-charging lithium-ion battery by perovskite solar cell
 

Electric vehicles using lithium-ion battery pack(s) for propulsion have recently attracted a great deal of interest. The large-scale practical application of battery electric vehicles may not be realized unless lithium-ion batteries with self-charging suppliers will be developed. Solar cells offer an attractive option for directly photo-charging lithium-ion batteries. Here we demonstrate the use of perovskite solar cell packs with four single CH3NH3PbI3 based solar cells connected in series for directly photo-charging lithium-ion batteries assembled with a LiFePO4 cathode and a Li4Ti5O12 anode. Our device shows a high overall photo-electric conversion and storage efficiency of 7.80% and excellent cycling stability, which outperforms other reported lithium-ion batteries, lithium–air batteries, flow batteries and super-capacitors integrated with a photo-charging component. The newly developed self-chargeable units based on integrated perovskite solar cells and lithium-ion batteries hold promise for various potential applications.

دانلود ترجمه مقاله Discover-42-48-6650-Lithium-ion-battery-datasheet

Lithium Ion Battery
Discover Advanced Energy (AES) batteries allow for equipment design and functionality improvements and deliver productivity gains through enhanced cycling, charge time and weight reductions in stationary and mobile applications. Dramatic improvements in cycle life and charge efficiency combined with zero maintenance requirements provide the end user with significant cost of ownership savings.

دانلود ترجمه مقاله ملاحظات طراحی و ارزیابی عملکرد شارژرهای باتری PV در فضای باز

Design considerations and performance evaluation of outdoor PV battery chargers

 

abstract
Two main challenges are encountered in photovoltaic (PV) based battery chargers, namely, the variable input power and the fluctuating temperature. As a result, traditional charging techniques that rely only on the terminal measurements such as the current, voltage or temperature are not reliable in those chargers. Furthermore, relying only on the terminal measurements without other indirect measurements can result in terminating the charge before the battery is truly fully charged, which has several drawbacks such as reducing the usable capacity and possibly leading to memory effect in nickel-based batteries, or overcharging the battery which can lead the battery to prematurely reaching its end-of-service. This paper presents design considerations and evaluates the performance of PV chargers used to charge major battery chemistries including nickelecadmium (NiCd), nickel-metal-hydride (NiMH), lithium-ion (Li-ion) and sealed lead-acid batteries at real operating conditions.

دانلود ترجمه مقاله مقایسه تجزیه و تحلیل اقتصادی باتری بین لیتیوم یون و سرب اسید در برنامه مستقل Pv

Comparison the economic analysis of the battery between lithium-ion and lead-acid in PV stand-alone application

 

Abstract
This paper presents the economics analysis of 140 Wp photovoltaic (PV) stand-alone system by using a generic excel model. The main components of PV stand-alone system consist of 140 Wp PV module, 150 W inverter, and two different types of battery as lithium-ion and lead-acid battery. The economic analysis of this paper presents the cost of energy (COE), benefit cost ratio (BCR), and simple net present value (SNPV). From the results of this study show that the COE, BCR, and SNPV of PV standalone system, which using lithium-ion battery are 0.13, 34.93 baht/kWh and 145,927 baht, respectively. For the COE, BCR, and SNPV of PV stand-alone system, which using lead-acid battery are 0.19, 23.30 Baht/kWh and 89,143 Baht, respectively. Although the economic parameters show that the PV stand-alone which using lead-acid batteries is suitable than PV stand-alone that used lithium-ion battery. However, lithium-ion batteries have many advantages when compare with lead-acid battery technology as high energy density, low maintenance and the number of lifecycle is higher compared with lead-acid battery.

دانلود ترجمه مقاله باتریهای سرب اسیدی و لیتیوم یونی در سیستمهای فتوولتائیک مستقل

Article
Comparison of Lead-Acid and Li-Ion Batteries Lifetime Prediction Models in Stand-Alone Photovoltaic Syste

Abstract: Several models for estimating the lifetimes of lead-acid and Li-ion (LiFePO4) batteries are analyzed and applied to a photovoltaic (PV)-battery standalone system. This kind of system usually includes a battery bank sized for 2.5 autonomy days or more. The results obtained by each model in different locations with very different average temperatures are compared. Two different locations have been considered: the Pyrenees mountains in Spain and Tindouf in Argelia. Classical battery aging models (equivalent full cycles model and rainflow cycle count model) generally used by researchers and software tools are not adequate as they overestimate the battery life in all cases. For OPzS lead-acid batteries, an advanced weighted Ah-throughput model is necessary to correctly estimate its lifetime, obtaining a battery life of roughly 12 years for the Pyrenees and around 5 years for the case Tindouf. For Li-ion batteries, both the cycle and calendar aging must be considered, obtaining more than 20 years of battery life estimation for the Pyrenees and 13 years for Tindouf. In the cases studied, the lifetime of LiFePO4 batteries is around two times the OPzS lifetime. As nowadays the cost of LiFePO4 batteries is around two times the OPzS ones, Li-ion batteries can be competitive with OPzS batteries in PV-battery standalone systems.

تبدیل سیگنال آنالوگ به دیجیتال

دنیای ما یک دنیای آنالوگ است. میکروکنترلرها تنها می‌توانند سیگنال‌های دودویی (Binary) را تشخیص دهند. مثلا یک دکمه فشار داده شده‌است یا خیر؟ به این سیگنال‌ها، سیگنال دیجیتال می‌گویند. وقتی یک میکروکنترلر با 5 ولت جریان کار می‌کند، یعنی که فقط صفر ولت را به عنوان عدد صفر دودویی، و پنج ولت را به عنوان عدد یک دودویی می‌شناسد. ولی دنیا به این سادگی نیست و از ترکیب‌های بسیاری استفاده می‌کندY مثلا اگر سیگنال 2/72 ولت بود چه می‌شود؟ این سیگنال صفر است یا یک؟ ما معمولا باید سیگنال‌هایی را حساب کنیم که محدوده‌ی گسترده‌ای دارند. به این سیگنال‌ها، سیگنال آنالوگ می‌گویند.

سلول خورشیدی اکسایتونی و کاربرد نانو در آن

این مقاله ضمن معرفی سلول‌های خورشیدی اکسایتونی و بیان ویژگی‌های آن، به تاثیراتی که نانوفناوری بر این نوع سلول‌های خورشیدی دارد، می‌پردازد. تاثیر اندازه ذرات بر میزان بارگذاری ماده جاذب نور، تاثیر اندازه ذرات بر تنظیم طیف جذبی نور و تاثیر نانوپوشش‌ها بر روی کاهش انتقال‌های مضر، در این مقاله مورد بررسی قرار می‌گیرد.

نانو و آند باتری 3-آند LTO

در این مقاله آندهای خانواده اکسید تیتانیوم معرفی و اثرات نانو بر ارتقای عملکرد این آندها بیان می‌شود و در آخر رفتار شبه خازنی که خاص نانوست، معرفی خواهد شد. اگرچه در این مقاله اثرات مثبت نانو در ارتقای عملکرد باتری گفته می‌شود، درباره ماهیت شیمی-فیزیکی اتفاقات رخ داده در ابعاد نانو بحث نمی‌شود و به مطالب تکمیلی ارجاع داده می‌شود.

نانو و آند باتری 2 -آند آلیاژی و معضل SEI

در این مقاله، احیای الکترولیت در آند که یک پدیده نانومقیاس است، توضیح داده می‌شود. تاثیرات منفی این پدیده، بر روی آندهای آلیاژی بیان شده و درباره چگونگی رفع این اثرات منفی با تهیه نانوساختارهای مناسب صحبت خواهد شد.