“…These figures constitute a powerful argument to recycle and reuse graphite from spent batteries, a subject that has received less attention than the recycling of cathode components. To our knowledge, in the last two years, five reviews have concerned the recycling of LIBs, in which more than 90 % of the content involved the recovery of the cathode components. By contrast, only one review, published in 2016, dealt in depth with anode recycling.…”
Section: Introductionmentioning
confidence: 72%
“…where b is the integral breadtha fter correction for instrumental broadening from ah ighly crystalline LaB 6 , < e > denotes local strains( defined as Dd/d,w here d is the interplanar space), K the Scherrer constantr elatedt ot he crystallite shape, and D the crystallite size. Equation (1) was appliedt ot hree order multiple reflections, (002), (004) and( 006), and the calculated values give information along < 00l < Mg > direction, which defines the direction of the layer packing (c axis).…”
Section: Resultsmentioning
confidence: 99%
“…These figuresconstitute ap owerful argument to recycle and reuse graphite from spent batteries, as ubject that has received less attention than the recycling of cathode components. To ourk nowledge,i nt he last two years, five reviews [6][7][8][9][10] have concerned the recycling of LIBs, in which more than 90 %o ft he content involved the recovery of the cathode components.B yc ontrast, only one review,p ublished in 2016, [11] dealt in depth with anode recy-The huge consumption of rechargeable Li-ionb atteries( LIBs) make it necessary to recover and reuse the different components of spent batteries, thusf avoring sustainable development. Graphite is ac ritical material in the manufacture of the current LIBs so recycling it should be prioritized in the managemento fs pent batteries.…”
The huge consumption of rechargeable Li‐ion batteries (LIBs) make it necessary to recover and reuse the different components of spent batteries, thus favoring sustainable development. Graphite is a critical material in the manufacture of the current LIBs so recycling it should be prioritized in the management of spent batteries. In this work, graphite is manually recovered from spent batteries used in smartphones. The impurities from the different components of the batteries are drastically reduced by simple leaching with HCl. This treatment significantly improves the delivered specific capacity, with average values of 300 and 390 mAh g−1 without and with leaching, respectively. To test recycled graphite as an anode material in real cells, it is paired with LiNi0.5Mn1.5O4, the most promising cathode material for high‐voltage batteries. LiCl, produced directly by chlorination of spodumene, is used as the Li source to obtain the spinel sample. The real cell gives satisfactory values for both initial specific capacity (100 mAh g−1) and capacity retention after 100 cycles. These results are comparable to and in some cases even better than those for cells that use commercial graphite and conventional Li sources as primary raw materials. Moreover, the cell shows good performance during the rate capability test; the delivered capacity values decrease smoothly from 73 to 62 mAh g−1 while the rate increases from 0.1 to 1 C.
“…These figures constitute a powerful argument to recycle and reuse graphite from spent batteries, a subject that has received less attention than the recycling of cathode components. To our knowledge, in the last two years, five reviews have concerned the recycling of LIBs, in which more than 90 % of the content involved the recovery of the cathode components. By contrast, only one review, published in 2016, dealt in depth with anode recycling.…”
Section: Introductionmentioning
confidence: 72%
“…where b is the integral breadtha fter correction for instrumental broadening from ah ighly crystalline LaB 6 , < e > denotes local strains( defined as Dd/d,w here d is the interplanar space), K the Scherrer constantr elatedt ot he crystallite shape, and D the crystallite size. Equation (1) was appliedt ot hree order multiple reflections, (002), (004) and( 006), and the calculated values give information along < 00l < Mg > direction, which defines the direction of the layer packing (c axis).…”
Section: Resultsmentioning
confidence: 99%
“…These figuresconstitute ap owerful argument to recycle and reuse graphite from spent batteries, as ubject that has received less attention than the recycling of cathode components. To ourk nowledge,i nt he last two years, five reviews [6][7][8][9][10] have concerned the recycling of LIBs, in which more than 90 %o ft he content involved the recovery of the cathode components.B yc ontrast, only one review,p ublished in 2016, [11] dealt in depth with anode recy-The huge consumption of rechargeable Li-ionb atteries( LIBs) make it necessary to recover and reuse the different components of spent batteries, thusf avoring sustainable development. Graphite is ac ritical material in the manufacture of the current LIBs so recycling it should be prioritized in the managemento fs pent batteries.…”
The huge consumption of rechargeable Li‐ion batteries (LIBs) make it necessary to recover and reuse the different components of spent batteries, thus favoring sustainable development. Graphite is a critical material in the manufacture of the current LIBs so recycling it should be prioritized in the management of spent batteries. In this work, graphite is manually recovered from spent batteries used in smartphones. The impurities from the different components of the batteries are drastically reduced by simple leaching with HCl. This treatment significantly improves the delivered specific capacity, with average values of 300 and 390 mAh g−1 without and with leaching, respectively. To test recycled graphite as an anode material in real cells, it is paired with LiNi0.5Mn1.5O4, the most promising cathode material for high‐voltage batteries. LiCl, produced directly by chlorination of spodumene, is used as the Li source to obtain the spinel sample. The real cell gives satisfactory values for both initial specific capacity (100 mAh g−1) and capacity retention after 100 cycles. These results are comparable to and in some cases even better than those for cells that use commercial graphite and conventional Li sources as primary raw materials. Moreover, the cell shows good performance during the rate capability test; the delivered capacity values decrease smoothly from 73 to 62 mAh g−1 while the rate increases from 0.1 to 1 C.
“…As is well known, modern society is greatly dependent on portable electronic devices such as smart‐phones, laptops, electric vehicles (EVs), etc. In particular the demand on EVs equipped with self‐contained batteries will explode in the 21 st century due to the imperative of reducing carbon footprints . Lithium is here to stay due to its superior potential for energy storage, apart from being light in weight, electropositive, non‐toxic and broadly available.…”
We survey the past, present and future of polymers and macromolecular science, both in general and giving specific examples from our diverse array of research backgrounds within polymer science and technology. As befitting our common bond, we pay some attention to the role of IUPAC. In line with this being part of a Rosarium philosophorum, one might say we conclude that it is Citius, Altius, Fortius for polymers in the century ahead, by which we mean “faster engagement, higher value, stronger properties”, and one should also add “longer usage”. In this way our broad community will continue to build on the century that has passed since Hermann Staudinger launched macromolecular science.
“…Lithium‐ion batteries (LIBs) have been the main power source in consumer electronics and electric vehicles because of the high specific energy, long lifespan, and low self‐discharge rate among various types of battery. However, the thermal safety problems of LIB cannot be ignored .…”
Summary
The power battery as an indispensable part of electric vehicle has attracted much attention in recent years. Among these, the lithium‐ion battery is the most important option due to the high energy density, good stability, and low discharge rate. However, the thermal safety problem of lithium‐ion battery cannot be ignored. Therefore, it is very necessary to explore an effective thermal management system for battery module. Here, a thermal silica cooling plate‐aluminate thermal plate (SCP‐ATP) coupling with forced convection air cooling system as a thermal management system is proposed for improving the cooling performance of pouch battery module. The results reveal that the heat dissipating performance and temperature uniformity of pouch battery module with SCP‐ATP are greatly improved compared with other thermal management systems. Moreover, the highest temperature can be controlled below 50°C, and the temperature differences can be maintained with 3°C when the SCP‐ATP coupling forced convection is utilized to enhance the heat transfer coefficient. Furthermore, considering the cooling effectiveness and consumption cost comprehensively, the optimal air velocity of the SCP‐ATP coupling forced convection cooling system is 9 m/s. In addition, the SCP‐ATP filling with different proportions of acetone has also been investigated for pouch battery module, indicating that 50% acetone exhibited a better heat transfer effect than the 30% one. Therefore, this research would provide a significant value in the design and optimization of thermal management systems for battery module.
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