Zur Korea 2016 Konferenz: The Advanced Rechargeable & Lithium Batteries Association    
Battery Conference 2016 – Seoul, Rep. of Korea – October 6-7, 2016
Ausgewählte Aspekte, von YK Kim & mit Anmerkungen von Tim Schäfer, 15.11.2016

Die nächste Generation von großen Batterien für die Elektromobilität wird sich auf den Bauformen prismatisch und zylindrisch verstetigen. Natürlich mit Li-Ionen-Batterien. Nur was werden absehbare Eigenschaften sein und wann kann damit in Serie gerechnet werden?
Metal-Air: 2018-2030 / Li-S: 2020 – 25 bereits! Damit setzt sich die Revolution beeindruckend fort. Das wurde zuletzt auf der Seoul Konferenz im Oktober deutlich gemacht.
Aus Deutschland gibt es dazu noch wenig belastbare Informationen!

Eins wird aber direkt deutlich, Amerika spielt anwendungsseitig und Greater China neben Korea und Japan eine besondere Rolle. Denn hier gibt es nach einer Analyse des Autors die intensivsten Bemühungen mehrere neue Gigafab Kapazitäten in den Markt zu bringen. Der Autor darf auch feststellen, dass führende EV Li-Ionen-Batteriezellen derart überzeichnet sind, dass aktuell der Markthochlauf gefährdet sein dürfte.

Hier als Auszüge wichtige Aussagen der Konferenz vor dem aktuellen Hintergrund:

  • High energy density > 500Wh/Kg
  • Low cost – reduced cost by 70% versus current lithium secondary battery
  • Future Li-ion price <150 US$ kW/h (was quasi schon status ist)
  • All Solid State: Toyota plans to mount a sulfide in cars
  • All Solid State seems to be a business priority 1 for investors & developers
  • Li-Sulfur: development of 25Ah battery
  • Improvements in energy density
  • Forecast of commercialization: Metal-Air: 2020-2030 / Li-S: 2025
  • Analysis of patent applications: leading by USA and China
  • Conclusion: Solid State, Metal-Air, Li-S seem to get the most R&D and business support

KESRI (Seoul University) zur “Role of Battery for the New Energy Evolution”

  • About storing and handling electric power
  • Establishing expansion of smart grid and use of ESS in major cities in Korea: smart cities
  • All has to be interconnected
  • Project: New Energy Industry, with the core of energy storage
  • Need for new generation ESS, also as a replacement for emergency generators
  • Need to increase EV development & sales
  • Charging infrastructure is the priority
  • Need for industry & academic cooperation to move forward
  • ESS, Renewable energy, Peak shaving (demand response), EV to be coordinated: however, who will invest as huge investment is needed.

Battery market and EESS situation in Japan – by T. Awajitani, BAJ

  • Increase in battery sales from 2012 is primarily due to an increase in automotive batteries.
  • Estimated ESS battery around 10%, no exact data available yet.
  • BAJ is focusing to expand ESS battery business, strategically to stabilize power supply in Japan.
  • Japanese government is promoting energy saving housing (zero emission housing & buildings), by integration of PV and ESS.
  • Many ESS projects throughout the country, mainly around Tokyo and isolated islands.
  • New certification facility for large LiB in Osaka, since May 2016 (for EV & ESS applications), run by NITE (National Institute for Technology & Energy).

Will battery upgraded technology help to diversify EV development?

  • LG Chem. wants to be a solution for the auto industry
  • Main trend for target range moves from city driving EV (3016) towards intercity driving EV (2017) towards long distance driving > 500km (> 2020).
  • PHEV range for the long term target is 80 km (popular in China and Europe).
  • EV market is growing 10 times faster than car market: estimate world 279.000 units.
    EV taxi
            - EV taxi expansion in Korea: 40 units in 2015
            - Big CO2 reduction potential
            - Easier to install infrastructure – securing of space
            - Operating cost: 20-30% benefit
            - Range not a big issue: daily autonomy is OK
  • Micro-mobility
            - 3 Renault Twizy = 1 regular car parking space
            - Part of the EV strategy
            - Twizy with 2 seats and will come soon to Korea
  • Request to strengthen EV incentives (similar to Norway)
            - EV taxi on bus-lane in cities
            - EV on express bus lanes
            - EV incentives similar to mini-cars
  • The current battery market is bigger than supply – so Korean manufacturers need to increase capacity – keeping an eye on China.
  • Can Korean government improve its incentive support with subsidies, industry R&D support to promote further development of EV?
    • Indirect support such as in Norway could help.
    • There will be a higher demand for high speed chargers
  • As Tesla is coming with new model with long range (300km), can Korea produce same type of vehicle?
    • It’s a matter of performance & price (also issue of gadget to attract customer)
    • Honda announced to introduce compatible model (with 400  km range)
    • No Korean-own model yet

Future applications of lithium batteries – by Sven Bauer, BMZ (Germany)

  • Big battery pack assembler in Europe, +5000 employees
  • System supplier for many intelligent battery and charging solutions
  • Presented several slides from Christophe Pillot, Avicenne
  • 3E Tech – 3Tron ultra-light packs: less cell for more power – used in e-bikes
  • Moving from 18650 cell to 21700 cell
  • Intend to start cylindrical cell production in DE as of 2018 with government support

Safety benefits of the 18650 bottom vent for future space battery applications – by Eric Darcy, NASA

  • For future applications
    • Robonaut 2 (on space station)
    • Mars Rover Vehicle - MRV
    • Valkyrie, RoboSimian - robots
    • X-57 Electric airplane – 525V - 50kWh - 1 hour mission
    • Orion Multi-purpose crew vehicle
  • 18650 with high energy range and density – similar to Sony VC7
  • Safety is tested on a space suit
  • Future work is to examine merits cell designs with bottom burst disk vent feature to reduce side wall rupture risks. Is it a better solution than a thicker can or lower header burst pressure?

Identifying key parameters for high density battery packs for more electrical flights – by Kan-Ern Lew, Airbus Group

  • Air traffic tends to double every 15 years
  • Aviation’s industrial drive: reduction CO2 (2% of global emissions currently)
    • Fuel efficiency improvement target is 1.5% per annum
    • Carbon neutral growth
    • By 2050, net carbon emission reduction of 50% based on 2005
  • Fuel efficient improvements by: weight reduction, aerodynamics, alternative fuels (bio), propulsion efficiency, optimized flight paths, on-ground emission reduction.
  • Many benefits of electrical flights: noise, operating cost, CO2, weight, comfort
  • Fuel cost is +/- 50% of Cost of Ownership of plane.
  • Wish to have electrical propulsion by 2030: energy density >700 Wh/kg – power class: 4 MW – power density > 3.6 kW/kg.